Create a clear taxonomy: thread_created, first_reply, answer_marked, reaction_added, flag_resolved, member_onboarded. Pair thread events with member states like newcomer, contributor, and mentor. This separation clarifies how behavior changes across roles, enabling fair comparisons and interventions that help, rather than pressure, different participant groups.
UTM discipline, referrer parsing, and campaign whitelists prevent fantasy numbers. Attribute signups to posts, newsletters, search, or ambassador links, but also track returning visit influence. A lightweight holdout group reveals when organic chatter, not promotions, drives outcomes, challenging biased narratives and saving scarce experiment bandwidth.
Publish a plain-language data note, include opt-outs, and aggregate wherever feasible. Store only what serves members. When a gaming forum anonymized search logs and shared insights back, trust rose, reporting improved, and moderators gained allies, because transparency felt practical, not performative, cultivating lasting goodwill and safety.