Well, I try to understand the rules here, although I think they are so excessive they are NOT clear lines. I have been called out on a word I hear every day on television. Kind of silly if you ask me. The word was not foul, abusive, or anything I would not say in front of anyone's mother. But, I will toe the line. If I don't want to abide by the rules, I will leave. However, when everyday, acceptable to normal society words are deemed unacceptable to this site, that is when the line is blurred.
It is really quite simple. If you are about to make a post and you have a gut feeling it is questionable, then don't post it. Evey time I have had my hands slapped, I knew upfront I was pushing it. I most cases people know, rather they want to admit it or not. It's all about attitude. Keep a good one and you will coast here. Bad attitudes sink. It is that simple. :s