That's cool!!! Finally I know what quantserv is.

All this information is cross referenced by IP address to the data gathered by a service called "quantserv".

So how do they gather so much information about you from the crossfire site? They don't. If you download a javascript blocker, then you will find that a whole ton of sites are being logged by quantserv. So basically they know exactly what sites you have been accessing by your ip address. Who knows what other information those web sites will give out!

Maybe they have access to the profile information? Maybe mightyjlr knows?