AndrewC: You won't, I won't, but someone else might; heck, even someone who doesn't know the crap that goes on on those forums might start having a bad opinion of this place based on statements like that, no matter how true or false.
You know, some tact goes a long way ;)
So basically, we'd all end up treading on egg shells. Can't discuss religion, it might offend someone. Can't discuss X game or Y system, it might offend someone. Can't discuss the weather, it might offend someone. And that too, would ruin the point of the community.
It's quite easy to be nice to new comers, but that doesn't mean you should avoid discussing something or giving your honest opinion on something just because someone thinks it might offend someone else.