And blocking is great! I've blocked many spam bots, people with hateful comments, entire communities because I don't speak their language or just don't have interest in their content (no OFFENSE to THE PACK you guys ARE SO COOL AND BADASS but that kind of humor doesn't appeal to me 90% of the time, no offense to sports fans but if I'm not actively playing it, I don't want to watch it)

But if it's a power user, it's really hard to get away from, and you can block them and all 15 of their alts but people still talk about some of them.

So you can prevent them from contacting you, and you can prevent either of you from seeing each other's posts and comments, but you can't completely get away from everyone.