I wasted several months posting at the official DNC hate site, http://webx.ibelong.com -- along with some fellow conservatives, we were flamed constantly. The moderators constantly watched us, and if we started to respond with mild attacks of our own, they were instantly deleted. In the meantime, the most vile attacks by the left-wing fringe dwellers who live there were ignored by the moderators.
That's pretty much a consistent theme that we have encountered at all of the left-wing hate sites. There is an extremely strict, rigidly enforced code of conduct for those conservatives who post there. But liberals can attack them at will, without fear of any consequences. And they have the nerve to accuse Free Republic of banning anyone who doesn't agree with us.
P.S. - If I ever set up a discussion site (not likely), you would certainly be welcome...