I signed up once and tried your experiment. I think I lasted about three posts, and I was trying to not be provocative. If you even think about setting your toe outside their intellectual reservation, you get zotted. Toleraqnce and open-mindedness my a$$. They are the most totalitarian bunch of thought police I know of.
I agree they are zot-zealots, but I see zotting here on FR with similar glee. Personally, I rather see honest discussion-- or at least good, old fashioned flaming.
But that's just me.