Not really good at IT.

Is it possible that when registering a new nick, a check is done on the source IP to see whether it's a match to current nick with the same IP?

If it's a match, than a pop up message to inform that there's only one nick per account and have found a match in IP add. Explanation for the purpose of 2 nicks within the same IP will have to send to the admins.

Also flag out an exception list on the particular nick so in the event the guy try registering from another IP, it's still a match.

Just a suggestion because sometimes seeing ppl creating multiple accounts just to spam or to the extent of another con in sales section. Thus by the time that someone found out and report, it could be too late.
Example: http://forum.lowyat.net/topic/606183
http://forum.lowyat.net/topic/604343

This post has been edited by b00n: Jan 8 2008, 11:40 AM

OK.....since it's not feasible than case close.
Thanks for the education.