You might be interested to check out my posts around the concept "Community has no boundary" I talked about 5 years ago, e.g. in this topic: https://socialhub.activitypub.rocks/t/standardizing-on-a-common-community-domain-as-ap-extension/1353

When I was still facilitator of #SocialHub I claimed that it wasn't a community in any really sense, with mostly people driving by on self-interested motives. It was just a discussion forum, where a poor commons janitor (me) had to do the unthankful volunteer upkeep.

"Expectation mismatch" plays an important role when anyone mentions "community". A "community-driven #FOSS project" is partly the formal governance that is in place, but mostly implicit cultural aspects. Knowing what you can expect is important, to not get disappointed.

A #fediverse instance to me isn't community. I only use the Home timeline.

As we navigate fedi we 'weave' in and out of community seamlessly, without realizing it. A rich concept of inter-community social networking is possible, I think, but it should be carefully designed.