So, based on what I’m reading from other posts, can someone please confirm that I’m understanding this correctly?

During the hack, they removed EH and other instances from the blocked list. During this time, new posts from those communities leaked in. They’re now blocked again, and we aren’t seeing new posts, but the ones that slipped in might appear in our feed occasionally for a few days.

I’ve been recommending lemmy.world to some friends, some of whom are trans, and I reeeeeeeeally don’t want them to sign up and see some of the posts I bumped into from those instances. Is it possible for an admin to wipe all of the extant posts from an instance?