When you look at WOT you will see that despite them having several categories users tend to vote the same way for all of them (with the exception of the adult rating). When you search the internet you want the results to be relevant. Some domains are definitely more useful than others when it comes to this. Also some domains tend to clutter your screen or browser with popups and other annoying and/or off-topic stuff that you really do not care about. As a result you are either happy or annoyed with your experience - I realize this does not sound very technical. It might be useful to some people and not useful to others. The choice is yours. In phase 2 we plan to add a bit of viruslab intel to the rating symbols in order to provide both the soft categories and the security stats.