Disassociation option

This is just a selfish idea from me.

There are servers that I've entered and posted on. Eventually, I realize that I disliked the community and would like to have any mentions of me or posts that I've made on that server to be removed. In short, I want to disassociate myself from the server and have traces of me removed.

There are also some toxic dms that I would like for me or the sender to forget but blocking isn't enough. Maybe consider auto-closing and auto-clearing a conversation if one of the users is blocked for a long enough time.