Correct, community refers to your social graph. The Grapevine allows you to attest your “trust” in some user in some context. Every context is an action and a category. Alice endorses Bob for all actions and all categories; or Charlie to curate content (the action) for wikifreedia (the category). Maybe all wikifreedia articles; or maybe only articles in the topic of bitcoin. Or maybe I endorse you to review code (action) in the categories of BDK and LDK (the categories). Your Grapevine will calculate an influence score for every user, in every category, and will include a measure of certainty: Your Grapevine says that Bob is highly talented in some category, but only 1% certainty bc it’s based on a small number of attestations from users who are all multiple degrees of separation away from you.