Actually, AOL addresses are banned from the site and have been for several months now. Besides the fact that I hate AOL, AOL blocks mail from my server because of the volume of mail that GTPlanet sends out with new post notifications, registration confirmations, etc. Of course, confirmation is required, so AOL users would be unable to complete the sign up process. By preventing anyone from registering with an AOL address this problem is avoided.
If you registered with an AOL address before AOL was banned then nothing happens. Of course, you won't be able to receive mail from us.