When a non-violent protest becomes violent, thanks to the idiot who got himself run over by a car and the other idiots who had to break windows and go nuts with spray paint, you get news stories like this.
The minions of the 1%ers are using all their clout to marginalize the protests as it is, they don't need to be given ammunition from our side. Somebody needs to get a hold of the Oakland folks and get them to clean up their own house. Graffiti and vandalism of innocent people's businesses and property can do nothing but hurt us in the PR battle. It also gives the cops an excuse to bust heads preemptively.
Think about it.