Rated 5 out of 5 stars
Finding this add-on not only made my day, I think it may be the greatest find of my year. The options are great and the choice to simply block all comments is simply sublime.
The only thing that would be nice to see (and forgive me if I've simply not seen it) would be a 'black-list'. Words you find offensive but aren't necessarily in the dictionaries or profanity block list. I've yet to come across such a problem, but just as an 'in-case' option since profanity develops new terms all the time. :)
Other than that, this is the greatest add-on in my list!