You have to understand that there are some that feel that they can say anything to anyone since the one on the receiving end won't be able to do anything about it while they sit behind their keyboard. By putting the above rules in place, it gives the admin types the ability to take "corrective" action as required. There have been people banned due to their posts and attitudes here in the forum and, while I don't know of it happening a lot, it's usually for the good of the rest of the forum members. Having "thick skin", as you mentioned above, doesn't do anything to prevent abusive posts, it just lets those that feel it's their "right" to say anything they want do so and not have to worry about repercussions.