BTW, for those of us that want to avoid spoilers and think that blocking stuff that might end up giving you false positives is too much, This will save you on Youtube. Here's a blacklisted channel list I got from a Discord that's been telling on people that spoil.. I'll update it as more idiots post spoilers on Youtube so you can play there in peace.
Also you could put a "Spoiler Grinch List" on SocialFixer if you're bothered by KH spoilers on Facebook, but I haven't seen any yet. ^^