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.
Most of the times it is not that it isnβt stable, is more that youβre trying to do thinks the Windows way but I get that learning the Linux way can be hard since most of the times itβs not obvious or intuitive.