How I know I've uploaded a video. I know my channel is garbage but this reeks of @TeamYouTube fuckery.pic.twitter.com/TCtsfZO1OI
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“Oh, a new video of X on my timeline. I never watch X anymore, might as well unsubscribe since it’s conveniently brought to my attention in my timeline now”. — I’m in no way an YouTube expert, but this seems the most likely culprit to me