The biggest problem I see is fragmentation, people are creating the same community in different instaces, /c/Piracy for example. Lemmy should prevent this, community names should be unique, it should have an index of all the Lemmy Fediverse where instances can lookup if a community exists instead of waiting for a user to import that community to his instance. Something similar to what BTC does with the decentralized ledger.
That's the front page, just select All instead of Local.
Right now I'm using a NR200P but in the past I had a Cougar QBX, which was a great case for its price (around USD 60), now I'm thinking of changin to a Fractal Design Ridge but I hate how its front panel looks, although I saw a post of someone who's selling wooden front panels for it so I might give it a try.