chrisironsbones: Another way is for WGT to have a database of all IP addresses and if another account is started with IP address that is all ready in use, new account opening FAILS. (but dont know if this is possible?)
It is possible. There is an german outfit, Gameforge, wh run a game called Ogame, and that has IP monitoring to stop multi accounting and such like behaviour.
I guess, WGT don't really care, as it doesn't impact on their revenue stream, because if it did, it would have been eradicated years ago!!