I sure have! I've participated in Occupy Providence, gone to a couple of marches/rallies, and generally supported them (I'm on their mailing list, have gone to several events at Occupy, etc.). I'd be doing even more if I didn't have my stupid back injury. I've learned a lot about my own feelings about politics from my experience with Occupy, and the ridiculous, horrible way my country is being run, no matter what party is in power. Democrats? Yeah, you're not that much better than the Republicans. I'm really glad I never became a member of the Democratic Party.
I think Occupy is a very important movement--because of Occupy, people in Washington are talking about income disparity again. If nothing else is accomplished (and a lot more has been--support for homeless and foreclosed-upon people, are a couple of big examples), Occupy is changing the national conversation to actually include income disparity and how 1 percent of Americans have 90 percent of the wealth, and how that's a bad thing, both for the poor and middle classes, and for the nation as a whole.
Now that so many Occupy camps have been forced out, the movement is changing, becoming a presence at school board meetings, state legislature committee meetings, even stuff like the Iowa caucuses. Occupy Providence is doing a lot of that, too, and the OP camp is is still going strong as a camp, as well--and keeping Burnside Park cleaner than it was before it was Occupied. Go, Occupy!