That last sentence is unfair. He has his preferences, and may disagree with people on those. But he doesn't bar discussion by people with whom he disagrees unless he sees a particular disagreement that runs counter to the purpose of the website. That leaves a whole lot of room for disagreement that isn't banned.
In an election between Romney and Obama, I'll vote for Romney, but I'll respect the rule not to advocate for him here.
I feel as you do - and so do a heckofalot of others, from what I have seen - but you do understand that this labels us as "supporters" of Romney, correct?
IMO, therein lies the problem.