It's pretty sad how so few of the people reading a technology site seem to have any clue about the past of one of the most influential internet based protest groups beyond the last year or so. "Anonymous" has already taken to physical protest before, including a very successful campaign against Scientology. It doesn't matter if they get arrested because the entire point of a protest is to draw attention to your stance on an issue. Tear gas and tasers are a protester's best friend, because the more chaotic the scene is the more likely it's going to be on national news.
Is it going to change much? Well, really, when has this kind of protesting ever changed anything? But I sure do see a lot of people judging or dismissing their actions. Remind me again what you've done to change anything. The very cancer that's killing this country is the fact that Americans complain about everything and do nothing. If this protest ends up being futile it's because people are too lazy or scared to actually attempt bringing about change. The fact U.S. media is controlled by partisan liars that spin the story in their favor doesn't help matters either. Until you're out making something happen, I fail to see how anyone here is in any position to call their efforts wrong. If you think they should be protesting in D.C., why aren't YOU out there protesting in D.C? If you think that Wall Street should be hacked, why aren't YOU hacking it? If you think their actions are incorrect, why aren't YOU taking the correct action?