@joeluke
The job of "Rent-A-Mob" is to make whoever is holding the protest march look bad. Logically, that means that there are both leftist and rightist mobs. Possibly more than one of each and not necessarily organised or cooperative with other groups, with which they share an alignment.
I can understand use of the Guy Fawkes mask as an artistic statement against the way one sector of society (government, employers) treats another sector as an amorphous blob of faceless, 'undeserving', poor'. Its use as a way of enabling criminal behaviour while under intense CCTV surveillance is something I deplore because the violence and criminality can only ever *undermine* whatever message - no matter how sincere it may be - the march is trying to put across.
So what if your face ends up on a police file? If the message is rational and reasonable, you have nothing to lose. I went on a march against the ending of student grants. I'm sorry it didn't achieve its aims but I'm not sorry to have been there and, perhaps, be on the public record for doing so.
Lose the masks, march again and behave yourselves properly, next time. Credibility is the name of the game.