It's not the first big wave, and it won't be the last! :) I always think it's a bit funny when fresh users spend a lot of time requesting new features - give yourself some time to settle in!
It can be a bit frustrating in the 'grad with new Lemmy users not understanding at first that communists exist here. It's a learning experience for everyone, though! I can probably use the practice in being more patient.
The one really big thing I'd like to see is just simply having lemmy-ui and other front ends translate links to other communities into a link that keeps you on your instance. So if an lemmy.ml user links to /c/technology then a user on lemmygrad.ml would be linked to lemmygrad.ml/c/technology@lemmy.ml instead of going to lemmy.ml where they're not logged in.
Then you could seamlessly follow links and interact around the "threadiverse" without doing the awkward switch back to your own instance to find the community so you can interact with it.
Biggest thing lemmy devs need right now is more devs, not money (though money doesn't hurt). If you could find someone new and convince them to work on it (possibly with a bounty) that would probably be more helpful.