Federated services have always had privacy issues but I expected Lemmy would have the fewest, but it’s visibly worse for privacy than even Reddit.
- Deleted comments remain on the server but hidden to non-admins, the username remains visible
- Deleted account usernames remain visible too
- Anything remains visible on federated servers!
- When you delete your account, media does not get deleted on any server
Good luck with finding an anonymous system that can not be easily abused.
FHE solves that through and through, as has been documented widely, but that’s overengineering when you could just use plain ZKP.
Zero-knowledge voting is here and has been for a while now.