That's funny, since I have posted a couple of blogs having to do with God, Christians, Atheists etc and I am a Christian myself, and they know it. Yet I have not gotten an infraction yet or a ban. I think you are overreacting with the first line to be honest. I have seen others who believe in God still on the forum. I even had a blog post directed to Atheists which could have been dangerous (It wasn't, nothing went wrong) and still am a member. When you were on there, did you do anything else? You might have been infracted for something else similar to it. (And I have only ever gotten an infraction once there, because I was "flame-baiting" someone, which I guess I was, but it was because I couldn't believe someone wanted to name their child Oshawott, I might have gotten overboard. How many have I gotten here? Not all at once, but about 5 or 6, some were really stupid to be honest).
I don't really have a worst internet forum, oh well the World of Warcraft forums can be stupid, considering a lot of the members complain, whine and insult each other (And they need to shut up with the pet battling is just Pokemon, nothing wrong with that). There are some people who's questions seem like they are confused or new to the game, yet people call them trolls.
Neopets boards can be pretty stupid as well, if you dare speak out of line you have a whole heap of people onto you. I have seen people posting in the Help Chat board, and people going off at them despite they asked a question. Although I like certain aspects of the site, I just don't like the way those admins run everything, you do one thing wrong and they freeze you, they hardly listen to anyone (Take a look at their newsletter where they answer member's questions, or used to, they don't even answer serious questions anymore about the site). They seem to deny that they ever did anything wrong, and then you got those suck ups members who also act like TNT doesn't freeze you for no reason. Pfft, give me a break.
Pokefarm is a fun site, but some of the admins I don't agree with. Seriously, if someone criticizes their custom sprites, or complains even a little bit about how they take forever releasing events or something, they will act like children, chucking a tantrum. I kid you not, like in August I think, they had some event and some people didn't like the event, some were horrible about it, but most of us just had an opinion whether we liked it or not. Because of those small group of people, they take away an month of events (Are we in high school? You know when a teacher makes the rest of the class suffers because of a few students, and then she makes the good students suffer because it's the end of the day and your parents get yelling if you are late, and the teachers makes life harder for the parents via doing that).
I do love that site, but the admins can be quite childish and having an opinion on that site is a no-no.
I think that's all I can think if now.