I really am not a big fan of this... Hand-waving, I guess? Around this problem. Saying "well the norms are still being established" feels kind of like a "well don't really get mad at the people doing it, they're still trying to figure out the boundaries of acceptable use" kind of thing to me. People should already know that this kind of behavior is unacceptable. The fact that they don't is very, very telling and says a lot about the people doing it IMO.