Two ill-behaved fans graffitiing a wall is not anywhere near the level of football hooliganism, come on. It's not acceptable by any means but you're talking about the biggest fanbase in skating by a mile, and an isolated incident. A couple lunatics acting out do not make a trend. I think cyberbullying is a much bigger (and scarier) issue that has been going on for years now. There really are some deranged people out there, and they are not exclusive to any one group of fans.
I was likening the act of doing such a thing not the scale of the two. Plus I didnt say it was going to be a trend at least i hope not.