My take on this is different. For me, the reason that conservative posters thrive in the Politics forum is because their views are more in sync. When non-conservatives come there, they come from a larger variety of view points. The conservative posters always argue with the less conservative posters, who seem to think they can persuade the conservatives. That's highly unlikely and I wonder why they bother. If the simply ignored the conservatives, it would take away some of their fire.