To support decentralization and spread, should lemmy.world close registration at some point to prevent a performance overload due to too many users? Of course, if registration is disabled, there could be a hint placed somewhere near that from other instances you can interact with content on lemmy.world just like you had registered on it. There could be a link to join-lemmys instance overview.
As an immigrant from reddit myself, the multiple instances and where to call my home was the first big hurtle by far. With that, my biggest concern was if the instance I was joining was going to allow me to see everything in the fediverse since instances can be blocked.
Right now I have a kbin and Lemmy account. Because although the Lemmy account I’m on isn’t being blocked by anyone, I’m finding it difficult to find some instances where on kbin the same search yields the results I’m looking for.