My point is that it's totally fine for conversations about religious things to have atheist input. It's an equally valid viewpoint regardless of whether the creators of the thread intended them to have input. What I have a problem with is you suggesting that whatever atheists have to say has no place in a religious conversation. Sure some of them are less than friendly, but so are a large portion of posts regarding Islam and atheism.
That is not what I'm saying. It depends on what kind of religious conversation it is, of course.
That's just what it seems like, but whatever. It's no big deal, just by two cents.