An Edit History for user profiles.
I've noticed that when you ban people, and they have unwanted information on their profile, they'll immediately hide it. I've also been experienced with this, I had my hate list towards Ninja but I hid it. If you do this, you can get info needed to get proper proof for a ban.
~~~~~~~~~~~~~~~~~~~~For those who don't understand~~~~~~~~~~~~~~~~~~~~~~
Say we have a user, User A and User B. User B offends a bunch of users with a bunch of curses and profanity on his profile. When User A reports him/her, User B immediately erases the needed proof before User A can get a hold of it. BUT, if we had this feature, trachy could see it.
Note from Fizzcube, all credit to him: Only Mods + Pokemaster have access to this edit history and the owner him/herself.
Pokemaster I hope you consider this as I feel it will benefit the site and stop many trolls from continuing his/her reign of terror. Also, I want to read the edit history of Rio's profile XD. But seriously, I feel this would help.