[Ayumu Yumi]

I tried this exact same hack before. 3 seconds after I installed it, every AOL user on the site IM'ed me saying they were blocked from the site. I visited my own site through my AOL and this variable existed:

$_SERVER['HTTP_VIA'] = "HTTP/1.1 (Velocity/1.1.1 [uScMs f p eN:t cCMp s ]), HTTP/1.1 dtc-ad09[CDBC74CB] (Traffic-Server/5.3.8 [uScM])"

As much as I would like to ban proxies or ban by IP at all, I just figured it would be easier to turn on admin validation for new user registrations.

If AOL didn't use proxies such as that one then I would probably use it. Of course if you didn't use AOL's default browser and opened up an external browser, then the AOL proxy vars aren't there anymore. But most AOL users aren't smart enough to do that, or they are just too lazy to.