In my opinion , addons like weprep , WOT , etc are just confusing , it is all about user opinions , and people can get confused by it , if you have to implement a security add-on , base it on real facts , if it is a safe site or not , with a blacklist of known sites , not user opinions , imo thats not what a security program is about , its about '' is it malicious or not '' , not what users think about the site , some people find a site good and some not.