Forum:Block SteamlandsGuy?

Should I block SteamlandsGuy? First off, he was placing WIPs for himself on pages he didn't plan to edit (which he stopped once I told him). Next, he placed messages and an image of a game on Users Talk Page (I.E: This is Powerup. [Image of Powerup]) He did this for Bulbear, Me, and somebody else. He then started to change the names on WIPs of people who were editing the page, even while out of his account. Lastly, for the talk pages of game he would create them with a placeholder and just type "Whats this?" and save the page signing with somebody else's signature. Should we block him for his tomfoolery? Should we shoot him a message one more time then block him if he still doesn't abide with the rules in the message? --I'm  Nobody  (we mean the User)  * Creator of  Nitrome Universe  12:32, May 31, 2011 (UTC)