This is supposedly a safe browser add-on that will help protect against dangerous or fraudulent websites. Users are supposed to rate sites good or bad. But WOT actively rewards users who specialize in giving negative reports. Some of their top-rated users have done tens of thousands of negative reports, and it is obvious they are not really rating sites accurately. WOT's own statistics show that the overwhelming majority of ratings are negative. The developers of WOT are in the business of selling security seals for websites, so they have a vested interest in making website owners afraid of negative ratings....