I agree with everyone in this thread in one way or another. cdmrtbeok brings up the point that discussion political/religious facts is in no way offensive, but kittypuppet raises that someone is always bound to be offended. Personally I believe everything Mumber said here is spot-on;
To directly quote the rules;
Excessively negative comments or disruptive arguments/discussions in global chat are not tolerated. This includes, but is not limited to, discussions concerning politics, religion, issues with staff/policy, issues with specific other players, or validity of bans. Any and all such conversations should be conducted in/moved to private channels, such as /msg, clanchat, or /mail. It's as clear as day; if the discussion is actually "excessively negative", it should be moved to clanchat. Take note that "negative" doesn't mean the same thing as "excessively negative". I appreciate that zburdsal queried for the opinions of other staff when dealing with political discussion earlier, as this does a lot to remove the idea of someone being politically/religiously biased and silencing discussion for their own purposes. What it ought to come down to is a short, simple discussion amongst present staff when political/religious discussions take a turn for the negative in order to decide the best course of action. However, as the rules very clearly imply, discussion about politics/religion is not banned; only excessively negative forms of it are.