LinkedIn vs X vs Facebook vs Quora: How B2B Companies Should Build Social Media Matrix

Summary: B2B marketing director David only invested in LinkedIn, missing 80% of opportunities. Deep comparison of 6 B2B platforms to help you build a complete lead generation matrix.

June 30, The Brutal Lead Report

David opened his lead tracking spreadsheet, his face growing darker.

LinkedIn:

• Content: 120 posts
• Total impressions: 500K
• Clicks: 5,000
• Leads: 150
• Customers: 15
• CAC: $1,200/customer

X (Twitter):

• Content: 200 posts
• Total impressions: 300K
• Clicks: 3,000
• Leads: 80
• Customers: 8
• CAC: $450/customer

Facebook:

• Content: 60 posts
• Total impressions: 200K
• Clicks: 2,000
• Leads: 50
• Customers: 5
• CAC: $360/customer

Quora:

• Content: 100 posts
• Total impressions: 100K
• Clicks: 1,500
• Leads: 60
• Customers: 6
• CAC: $300/customer

Reddit:

• Content: 50 posts
• Total impressions: 80K
• Clicks: 1,000
• Leads: 40
• Customers: 4
• CAC: $250/customer

Medium:

• Content: 20 posts
• Total impressions: 50K
• Clicks: 800
• Leads: 30
• Customers: 3
• CAC: $200/customer

Total: 6 months 180,000 invested, 41 customers, average CAC 4,390.

But the problem wasn't the total cost, it was the structure.

LinkedIn brought 15 customers, but CAC was 1,200. Other platforms brought 26 customers, average CAC was only 312.

"Why is LinkedIn's CAC 4x higher than other platforms?" the CEO asked.

David couldn't answer.

Deep Comparison of 6 B2B Platforms

David decided to do a systematic comparison. He listed 7 dimensions and scored 6 platforms.

Dimension 1: Decision Maker Coverage

LinkedIn has the highest decision maker coverage. 85% of B2B decision makers have LinkedIn accounts.

X has high decision maker coverage. 60% of B2B decision makers follow industry trends on X.

Facebook has medium decision maker coverage. 40% of B2B decision makers have Facebook accounts, but mainly for personal use.

Quora has medium decision maker coverage. 35% of B2B decision makers answer questions on Quora.

Reddit has low decision maker coverage. 25% of B2B decision makers are on Reddit, but mainly lurking.

Medium has medium decision maker coverage. 30% of B2B decision makers read in-depth articles on Medium.

Score: LinkedIn 95, X 80, Medium 60, Quora 55, Facebook 50, Reddit 40.

Dimension 2: Customer Acquisition Cost

Reddit has the lowest CAC. Low competition, cheap ads, large organic traffic.

Quora has low CAC. Mainly content marketing, medium ad cost.

Medium has low CAC. Mainly content marketing, medium ad cost.

Facebook has medium CAC. Ad prices are moderate, but targeting isn't precise enough.

X has medium-high CAC. Ad prices are moderate, but conversion rate is low.

LinkedIn has the highest CAC. Expensive ads, fierce competition.

Score: Reddit 95, Quora 85, Medium 80, Facebook 60, X 50, LinkedIn 30.

Dimension 3: Content Depth

Medium has the highest content depth. Designed for long-form, users willing to read in-depth content.

LinkedIn has high content depth. Can post long articles, users willing to read professional content.

Quora has high content depth. Q&A format, can provide in-depth answers.

X has low content depth. Mainly short tweets, long-form support is limited.

Facebook has low content depth. Users expect social, not professional content.

Reddit has medium content depth. Can post long threads, but user attention is limited.

Score: Medium 95, LinkedIn 85, Quora 80, Reddit 60, X 50, Facebook 40.

Dimension 4: Brand Exposure

LinkedIn has the best brand exposure. Professionals gather, strong brand endorsement.

X has good brand exposure. Real-time spread, strong topic nature.

Facebook has medium brand exposure. Large user base, but weak B2B attributes.

Medium has medium brand exposure. Content-driven, limited brand visibility.

Quora has low brand exposure. Mainly answers, limited brand visibility.

Reddit has low brand exposure. Users反感 brand marketing.

Score: LinkedIn 95, X 75, Facebook 60, Medium 50, Quora 40, Reddit 30.

Dimension 5: Lead Quality

LinkedIn has the highest lead quality. Decision makers concentrated, strong purchase intent.

Quora has high lead quality. Actively asking questions, clear needs.

Medium has high lead quality. Reading in-depth content, strong intent.

X has medium lead quality. Intent unclear, needs nurturing.

Facebook has low lead quality. Mainly personal users, weak B2B intent.

Reddit has low lead quality. Users反感 marketing, low conversion rate.

Score: LinkedIn 95, Quora 80, Medium 75, X 60, Facebook 40, Reddit 30.

Dimension 6: Content Cost

X has the lowest content cost. Short tweets, can produce quickly.

Facebook has low content cost. Images + copy, simple production.

LinkedIn has medium content cost. Needs professional content, medium production cost.

Quora has medium content cost. Needs in-depth answers, medium production cost.

Medium has high content cost. Needs in-depth long articles, high production cost.

Reddit has high content cost. Needs native content, can't do hard ads, high production cost.

Score: X 95, Facebook 85, LinkedIn 60, Quora 55, Reddit 40, Medium 35.

Dimension 7: Management Difficulty

Using SocialEcho's social listening tools, you can monitor brand mentions and competitor dynamics across platforms. But each platform's content strategy still needs to be separate.

LinkedIn management difficulty is medium. Needs professional content, but posting frequency isn't high.

X management difficulty is low. Can produce quickly, post frequently.

Facebook management difficulty is low. Content production is simple.

Quora management difficulty is medium. Needs in-depth answers, but posting frequency isn't high.

Medium management difficulty is high. Needs in-depth long articles, high production cost.

Reddit management difficulty is high. Needs native content, can't do hard ads, strict community rules.

Score: X 95, Facebook 85, LinkedIn 70, Quora 60, Reddit 40, Medium 35.

After Adjustment, What Changed

First month after adjustment:

LinkedIn: 15,000 budget, 8 leads, 2 customers, CAC 7,500.

Quora: 6,000 budget, 15 leads, 5 customers, CAC 1,200.

X: 4,500 budget, 10 leads, 3 customers, CAC 1,500.

Medium: 3,000 budget, 8 leads, 2 customers, CAC 1,500.

Other: 1,500 budget, 5 leads, 1 customer, CAC 1,500.

Total: 30,000 invested, 13 customers, average CAC 2,308.

Down 47% from previous $4,390.

Second month, David continued optimizing. He discovered a Quora secret: answering high-attention questions can bring continuous organic traffic. He assigned someone to answer 5 high-attention questions daily.

Second month results:

LinkedIn: 15,000 budget, 10 leads, 3 customers, CAC 5,000.

Quora: 6,000 budget, 20 leads, 7 customers, CAC 857.

X: 4,500 budget, 12 leads, 4 customers, CAC 1,125.

Medium: 3,000 budget, 10 leads, 3 customers, CAC 1,000.

Other: 1,500 budget, 6 leads, 2 customers, CAC 750.

Total: 30,000 invested, 19 customers, average CAC 1,579.

Down 32% from first month.

Third month, David continued optimizing. He discovered a Medium secret: article series get 3x the readership of single articles. He planned a "B2B Marketing in Practice" series, publishing one article per week.

Third month results:

LinkedIn: 15,000 budget, 12 leads, 4 customers, CAC 3,750.

Quora: 6,000 budget, 25 leads, 8 customers, CAC 750.

X: 4,500 budget, 15 leads, 5 customers, CAC 900.

Medium: 3,000 budget, 15 leads, 5 customers, CAC 600.

Other: 1,500 budget, 8 leads, 3 customers, CAC 500.

Total: 30,000 invested, 25 customers, average CAC 1,200.

Down 24% from second month.

6 months later, David's average CAC stabilized at $1,000.

Down 77% from the initial $4,390.

FAQ

Should B2B do TikTok?

Depends on your target customers. If customers are young entrepreneurs or tech companies, yes. If customers are traditional enterprises, not recommended.

Should content be unified or differentiated?

Differentiated. Each platform has different users, algorithms, and content formats. One set of content across all platforms will perform poorly.

Should I build an in-house team or outsource?

Depends on budget and scale. Small teams should outsource, find a professional B2B content marketing agency. Large teams can build in-house, but need professional content talent.

How to measure results?

Don't just look at impressions and clicks. Look at leads, customers, CAC, LTV.

How long to see results?

At least 6 months. B2B purchase cycles are long, decision chains are complex. First 3 months are accumulation, 3-6 months are growth, after 6 months is harvest.

Questions? Leave a comment below, or visit SocialEcho Help Center for more support.

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Word count: approximately 4,200 words | Reading time: 14 minutes