Exactly how is discussing faith threatening? If you don't believe, you don't believe.
BTW, it used to be this was "Anything goes"...
So once you start banning people and censoring, how do you determine what to censor and who to ban? by public opinion? and do you censor both sides, i.e. "pro" and "anti" religious discussion or all religious discussion?
There's a lot of topics discussed that could be viewed as "offensive", frag the site advertises "not safe for work" threads for a reason.
In the long run a site doesn't have to be "fair" and it can do whatever it wants, but like I *and Tom* stated, that's a slippery road.
If long term people leave because they can't handle either ignoring a discussion or accepting the fact there will be discussions they don't like, I don't know what to say. Name me one messageboard anywhere where all discussions are approved or have to be approved by a majority let alone everyone.