bringvisitor.com é seguro?

I signed up today after reading a thread about spam sites to see on eof the sites i have regularl used on the list and was outraged. I run a trafic exchange site and whenever somebody uploads a site i make sure that there sites reputation is checed against WOT, Googles safe site lists, several antivirus systems, i also make sure they are not initiating ifames, banners, popups, malware and not breaking Tems of Sevice for ad networs, it cost me thousands to develop a system that checks all this, but whats the point of doing it if i cant trust WOT to offer an impartial review? Many of my start up users came as a direct result of using bringvisitor and since i do not use ad networks such as google ad words i broke no rules in doing it. Please dont negative review a site unless you have used it, i have put faith in this site for honesty and i reject more than 20 users a day simply because WOT says they can not be trusted.... Would it be wise to stop trusting WOT?