@lcamtuf Note that instances that have people that follow you will generally fetch media too. "Remote" media is treated as a cache, and various instances have various approaches to how long they cache it for etc. I would hope that they drop it when they receive a deletion event for the associated post, but (a) it's hope (b) that notice might never arrive if something broke their mutual federation in the meantime (e.g. one blocked the other; iirc in either direction).