A screenshot, taken way before rexxit, of two comments on reddit, dated “1 year ago”.
The first comment is by a deleted user and the comment has been removed. The second comment is a reply to the deleted comment and it says: “That solved it. Thanks!”
Edit: added temporal context.
When you send a gdpr request to an instance, it is required to forward it to all parties it shared data with. So all instances it federates with.
But I am not talking about gdpr requests but data usage. Intentionally not removing data a user requested to be removed would get you in truble with the legitimate use (part of consent) requirements.