Atheists in church

[Spongebob]

I think an openly atheistic person in a church based community would be very popular. People would see it as a challenge. Not sure the atheist would have a very good time tho. Would be hard being constantly told you are amoral and going to hell and not being accepted as you are.

This depends a lot on individual churches and their attitudes.  Some can be quite punitive and scornful but others are more accepting and encouraging.  For the latter, all unsaved people are just people who haven't found Christ yet and need some help getting there.  I think the former could be altogether different and perhaps abusive, so it wouldn't be an inviting or interesting atmosphere.  There are those churches where the preacher condemns people for the most minor offenses.  Also consider that there are many (who knows how many) closet atheists who are members of churches for various reasons.  I once knew one who participated on a forum such as this.  He was absolutely an atheist but also a long time member of his church somewhere in New Hampshire.  Of course, that's a pretty liberal area so I doubt there was any fire and brimstone at his church.