another liberal user that got stuff on a lot was kimon/polywhirl. its absolutely not exclusive to right wing views - for example i can respect deus ex on the rare occasion when he takes the time to fully flesh out his opinion and properly rebut arguments. unfortunately that seems to be more the exception than the rule for him.
cheese, matthew, kimon, unimproved, etc have typically shown little to no respect to anyone strongly disagreeing with them so thats why they get so much stuff for what they say.