Good thing I only blew 0.007BTC on this. Theymos should be IP banning IMO.
I have a VPN with 20 different IPs, it costs $6 a month. Look at the bottom of the forum, private internet access actually sponsors bitcointalk (the VPN i use).
So IP banning doesn't do shit.
Not everybody has a VPN. It would certianly make their lives a little harder.