I like that the admins have decided on quality over quantity when it comes to communities. For example, there is only one gaming community instead of breaking everyone into several smaller subsets. It increases interaction and exposes you to other subtopics that might spark your interest.
I hope moving forward they continue with this approach!
It’s fine now when there aren’t nearly as many users, but I don’t see it scaling long term unless hashtags are a thing or something like that. Even something simple like gaming, over on reddit I’m in several very active subs - pcgaming, playstation, playstation4, several zelda subs, etc. If fediverse alternatives get to even 1/4 of the userbase that reddit has, the gaming (or whatever) portion is going to be such a firehose it won’t really be usable. And IIRC this is how it played out on reddit as well. I think (though could be mistaken) reddit started with a fairly small set of subs and it wasn’t until later that you could create your own subs.