Are you sure that YOU aren't making the assumption that its about the fact that they are conservatives, or the fact that those particular conservatives espouse ideals generally held to be contrary to the open ethos of the internet?
I think you are hearing what you want to hear and generalizing a bit.
I don't doubt that there, from time to time, have been some off-hand remarks, but I am POSITIVE that they are aware of it and try to stay away from it when they can. It's really hard to be impartial ALL THE TIME, don't you think?
I don't know if the hosts of the show read these posts, but I don't understand why this crew continues to take shots at conservatives. This show isn't about politics. Please consider the fact that not all your listeners have the same views that you do and don't use this as a platform to attack those of other political views.
Thanks for your consideration.