[KIPAX]

thats not how it works. If he has a fixed IP which is doubtfull (I pay extra every month for one) then he can just go through a anon proxy... if not a fixed IP then he gets allocated a new one everytime he logs on..

for example can you see the IP on yer MB? make a post... mark down yur IP... log off the internet.. log on and make another post.. your IP will be different.. for most people its different everytime you log onto the internet... but offices and colledges may have a fixed IP in which case you would be banning everyone at that office or school or whatever.