Perhaps the question came across wrong. I don't want to start a free for all bad language kind of thing. I just genuinely wondered what the rules were so that I didn't step over them, and didn't waste time writing a hub in which the whole point is about obscenity checkers with a potential punchline of a single F word obscentiy.
Thank you very much. It's why I posed the question. I certainly don't want to get banned, nor do I want to push the profanity boat out as it were. I will read the rules soon, and I am genuinely grateful to you.