I'm religious, but I'm seldom willing to discuss it in technical forums because of the responses it draws. Specifically those who feel it their mission to, first, tell me what it is I must believe, then, tell me why it's foolish to believe those things.
There are a lot of folks who feel tech forums are an appropriate place to make atheistic comments or anti-religious statements, probably because they feel like they're among a receptive audience. I think this gives an unbalanced impression of how far the split is to one side or the other. For myself, I just ignore the statements. It's not about what I'm in a tech forum for. And I don't consider it any more indicative of where the group mind is than statements on, say, film preferences.