I really hope we never reach the point where someone implements a way to silence OTHER people from having an opinion about your post... You have every right to decide what you see, you have no right to decide what other people can see. If i want to see what people have to say about your comment, I should be able to, and you should be powerless to stop me.
Looks like friendica have it, but it will only delete the post for yourself if i understand it correctly
Yea mastodon has that too, all services would let you delete it for yourself. But others viewing the thread can still see it,a s they should.
It may be usable if someone you follow usually post normal stuff, but occasionally publish some high-octane shit like lolies or tits or dicks or whatever