It is obvious that things become more interesting if they are banned. Therefore banning things is an efficient way of making them more interesting. Ergo, it is likely that political correctness was invented by, and is still promoted by, bigots such as racists, xenophobes, homophobes and sexists. By doing so, they make their bigotries more interesting, thus gaining extra followers. They add bans against specific words, often starting with the letter N, to make political correctness look even more oppressive, thereby gaining even more bigot followers.