I was thinking about this as an approach for a side project to build in order to (speed up) learn elixir/phoenix for work. While the old-school forums dedicated to specific topics work (why re-invent them?) I was thinking of a "tribal" social network.

You as a person decide you want to create a space with a combination of reddit-like features, maybe video, etc. Only people you invite can discover it (or you can allow them to invite people) It could work for neighborhood groups (similar to nextdoor but with a limited crowd that you like/trust), school groups, family, or specific interests -- although specific interests are the idea's weakest selling point since it lacks easy discoverability.

Yeah, there are forums, discord, etc. etc., but I thought it could potentially be interesting. And yeah, people would abuse it (i.e., share pirated and illegal content), so maybe not really viable.

what are some of these forums? I am quite young so never experienced those.