What would be FANTISTIC would be if the IP location would be fetched and sent in the new user email --
SO that instead of getting:
Check IP location in Melissa:
http://www.melissadata.com/lookups/iplocation.asp?ipaddress=76.102.90.132
You get something like this:
Check IP location in Melissa:
Sunnyvale, CA
That way you know immediately if there might be a spammer.