I would recommend you do a check over on your web site.
I registreted as a user yesterday, and a couple of hours later i got a suspecious account mail involving a virus/malware ready to be installed! Its 5-6 months ago i last joined any websites!!!
Luckely my virusprogram detected it before it made any harm on my system.
It came from <estratz@wmconnect.com
and was signed Shams Tamika.