one reason why I really enjoy fedi is because I can work on the things that bother me about the software.

With the big players that's just not possible. Things only get noticed if millions of users complain, pretty much.

My enjoyment or...huge amount of Twitter usage also comes from me being able to hack on it, actually.

My main way of using Twitter is TweetDeck, and I've contributed so many features to userscripts and extensions I lost count of them.