I enjoy deleting my old posts and comments, but it’s lot of work doing it individually, especially with comments. For other platforms there are apps you can login with, then delete old or all content, but I can’t find one for Lemmy. Does such a thing even exist?
Can’t you just edit the content and write ‘deleted’ then saving it? Won’t the federate everything to just say ‘deleted’ instead of actually deleting it which doesn’t delete it from all servers?
I’ve found edits don’t federate consistently.
Given that so much depends on the implementation details of the various instances I’m not sure anything more than a “best effort” is possible.
I wouldn’t post anything that would be a problem.