Even on reddit their were multiple subreddits that were very similar. r/oculus r/oculusquest r/quest2 r/virualreality and many more ar and xr subbreddits I was subscribed to. Much of the same content were on all of them. As the user base here grows it won't be an issue, some similar communities will be bigger some smaller and there's room for everything.

Im not sure what you're saying. Personally I want to avoid one huge centralized "community" as it no longer ceases to be a community.

It makes sense to me that different userbases have different /r/funny with different content that they find funny. Otherwise you just have one appeal to the lowest common denominator content.