Unlike "Rational"Wiki, skeptics.stackexchange doesn't promote "snarky point of view", so the personality type that enjoys making fun online of their political opponents wouldn't be attracted there. (I'd go even further and say that unlike Wikipedia it doesn't try to recruit people with specific political opinions, so it should be more balanced.) It probably isn't perfect, but nothing is.
My concern would be simply too many questiong and not enough contributors, so there is a high risk of the specific question failing to attract any answer, or only getting one or two answers, in which case the opinion of the random person who posted the answer could be unrepresentative.
(I only had experience with the programmers' stackexchange, and there many upvoted answers are great, and I also got some karma for answering other people's question. But when I asked questions, they were often unanswered, or only received one wrong answer. My hypothesis is that the difficulty of question correlates negatively with the number of answers. Also the gamification aspect of getting karma for good answers is good at encouraging people to answer questions, but if people get into too competitive mindset, it may discourage them from answering more complex questions, because that gets them less karma per unit of time: both because answering a complex question takes more time, and because there will be less people voting on the complex question.)
I've started a podcast called Future Strategist which will focus on decision making and futurism. I have created seven shows so far: interviews of computer scientist Roman Yampolskiy, LW contributor Gleb Tsipursky, and artist/free speech activist Rachel Haywire, and monologues on game theory and Greek Mythology, the Prisoners' Dilemma, the sunk cost fallacy, and the Map and Territory.
If you enjoy the show and use iTunes I would be grateful if you left a positive review at iTunes. I would also be grateful for any feedback you might have including suggestions for future shows. I'm not used to interviewing people and I know that I need to work on being more articulate in my interviews.