User accounts are fragmented and just because you signed on at lemmy.world doesn’t mean your account exists on lemmy.ca.
https://github.com/LemmyNet/lemmy/issues/1985
Communities are fragmented and /c/games on lemmy.world is completely different than the one on lemmy.ml with its own users, set of posts, etc.
Lemmy does not currently allow for instance or user migration.
https://github.com/LemmyNet/lemmy/issues/3057
Nor does it allow for shared communities (ie the aforementioned /c/games is unified across multiple instances)
https://github.com/LemmyNet/lemmy/issues/3100
We are in the early days. If you’re eager feel free to join in the development on these any many other core issues. There’s real potential here.
This should probably be high up on the list of additions. I like the idea of Lemmy but for things like getting support no one is going to use Lemmy if the entire community and all the posts can just disappear one day and all the history go poof.
Instance migration, lemmyverse.net functionality in lemmy, and assigning new users to a good random instance upon registration (and letting them change it of course) so they don’t need to know about instances, are the three most important features lemmy needs rn imo