I got annoyed from all reading useless Youtube comments that surrounded the very few useful ones. Messages like “Bieber sucks / rocks”, “I got shot in the knee”, “thumbs up if you … “, “lol”, MESSAGES IN ALL CAPS and more of that stuff.
So more as a joke than anything, I implemented a filter for Safari. It’ll make your Youtube experience a lot better. Silly comments are hidden, the rest stays. Hidden comments can still be seen when you select them.
(the code is no longer available)