The working class/middle class thing about who should be doing what kind of politics interests me.
It's quite often the case, that just because someone happens to be middle class and they want to be involved in some sort of politics, they are automatically bad, clearly don't have a clue what they're on about, and are part of the problem. Sure, lots of middle class people 'do politics wrong' but there are plenty of working class people who 'do politics wrong' too. You're not automatically better at sorting out what the best way to go about something is or what the most important issues are just because you're working class. Both groups (insofar as they are 'groups' at all) inhabit a specific set of circumstances that helps shape how they see the world, both are a part of the system, both have a stake in it, and just because one gets a rawer deal than the other (economically, and we can argue the toss in terms of other things re: 'identity politics' stuff) doesn't mean they have a preternatural affinity for being able to do 'authentic' politics.
There are a lot of middle class people in these occupy things, and in various lefty organisations. But rather than castigating them for being involved in some way (even if they sometimes 'do it wrong') how about trying to get more working class people involved as well.