This Add-On is great! It works as I expected it to, it helps anyone know the reputation of a site before they view it which is very useful for preventing downloading of malware/virus etc. I like all features of it and I will continue to use it as it's a useful Add-On for anyone who doesn't want to download malware or viruses.
I like and appreciate the years and years of community build up. While people are generally dumb there is a certain wisdom in large/innumerable groups. That adds that extra little something to determine if a site is safe, trustworthy or not, etc.