Do not debate whether the Torah is from Sinai.
Isn't it interesting that virtually all the frum blogs ban skeptical comments, while all (as far as I know) skeptical blogs allow religious ones?
I have no doubt that skeptic blogs will take this as an admission that traditional Judaism cannot withstand criticism. Let them. It is nothing but a willful delusion.
If traditional Judaism can withstand criticism, then why doesn't it? Where can skeptics or even Orthodox people with serious questions go to have their questions answered? We can go to individual rabbis, of course, who will give us idiosyncratic answers which they would never even own up to in public.
If you're so concerned about people being "at-risk" for going off the derech, Rabbi Student, you should give us skeptics something other than the brush-off that we've been getting from rabbis our whole lives.
(I see a similar pattern among political blogs, although much less pronounced. DailyKos, for example, allows all kinds of dissent, while Little Green Footballs -- winner of the JIBs for "Best Israel Advocacy blog -- will ban you for saying something the site owners disagree with.)