Also, I doubt that skavau is correct that if we all used piefed, you wouldn’t be able to reply to users on other instances if they have blocked you. A quick look at the code hasn’t proven me wrong, but I’ll make two accounts on piefed instances and test.

That’s a bug, if so. As I have spoken to Rimu about this and he said that blocking is specifically meant to prevent the blocked user from replying to the other user.