You are fully aware that your post would have been deleted if F6 was here... he tolerated no discussion of the moderation.
As to bias... yes, this board IMHO does have a bias. It is a progressive board, so conservative trolling has a short lifespan.
The main bias is for the truth though. If someone posts real information and their links and information check out, they tend to build up credibility credits, so to speak. Those of you that post from unreliable and outright false sources are held to a higher standard of proof, as junk posting makes the board trashy and derails discussion among honest people.
As a test, why not go post a simple post on any of the NOLIB type boards and post a moderate democrat point of view. You would likely be banned after one post. So go to those boards and whine about them. Usually a fair amount of discussion goes on before bouncing someone, but no one has ever said this board is a democracy.
So if you feel a negative bias because people are tired of correcting your lies, you would be perceiving it correctly. Oddly enough, you excluded, there are honest conservatives who do not base THEIR whole bias on lies. They may get argued with, but do not get shouted down because honesty counts. You have exhibited many incidences of dishonest posting and thus you are on a short leash, even tolerant people have to have limits.
Maybe if you got rid of YOUR wingnut bias you might fit in with the human race.