Blocking 16,785 channels so far, and this addon is still working like a champ. I block about 20 channels per day. The only thing that takes FOREVER is if I try to export/import my addon settings... lol. This, in conjunction with SponsorBlock, uBlock Origin, AdGuard AdBlocker, Enhancer for YouTube, and the fact I don't have a google account so I never log in, my youtube experience is PERFECT!