Measuring Community Health

Without measurement, communities drift. Engagement, growth, value, sentiment, ROI, cohorts.

Why measurement

Communities without measurement drift into vanity metrics (member count). Mature programs measure depth (engagement), breadth (growth), value (ROI). Without measurement, communities lose strategic justification.

Engagement metrics

• DAU, WAU, MAU.
• Active member rate (active / total).
• Posts per active member.
• Reply rate.
• Member-to-member connections.
• Sentiment per post.
• Returning member rate.
• New member onboarding completion.

Growth metrics

• New members per period.
• Member growth rate.
• Source of new members.
• Member retention (30, 60, 90 days).
• Member churn.
• Re-engaged lapsed members.

Value metrics

• Member LTV vs non-member.
• NPS difference.
• Retention difference.
• Expansion difference.
• Referrals from members.
• Reviews from members.
• Case studies / speakers from members.
• Product feedback contributions.

Sentiment

• Member NPS.
• Quarterly member surveys.
• Sentiment analysis on posts.
• Detractor identification and outreach.
• Promoter activation.

Community ROI

• Cost: platform + community manager + tooling + events.
• Value: LTV uplift + referrals + reduced CS + product feedback.
• Annual ROI calculation.
• Stakeholder narrative for community investment.

Cohorts

• Members by join period: retention curve.
• Members by source: LTV comparison.
• Active vs lurker cohorts.
• Tier-based cohort analysis.

Advanced playbook

• Community health dashboard.
• Member NPS quarterly.
• Cohort retention curves.
• Community-member LTV vs non-member.
• Annual community ROI calculation.
• Member journey mapping.
• Lurker activation strategy.
• Detractor outreach program.
• Sentiment analysis automated.
• Cross-team measurement integration.

Common mistakes

• Member count as primary metric.
• Engagement depth not measured.
• Cohort analysis skipped.
• Member LTV not tracked.
• NPS not measured.
• ROI not calculated.
• Detractor outreach absent.
• Lurker activation strategy missing.
• Member journey not mapped.
• Cross-team measurement broken.

Operating checklist

• Community health dashboard
• Engagement metrics tracked
• Growth metrics tracked
• Value metrics tracked
• Sentiment / NPS quarterly
• Cohort analysis
• Annual ROI calculation
• Member journey mapped
• Detractor outreach
• Cross-team measurement integration

Part of the Community-Led Growth series.