Heads up, Creators: On Dec 13-14 you may see a noticeable decrease in your sub count as we remove spam subscriptions. If spam is removed, you'll see a YouTube Studio alert: https://goo.gl/qGDBvX This should help give you confidence that the subs you do have are real fans!
Very very sneaky YouTube. You can just take away their subs and it was just the algorithm. People have been already complaining about being unsubscribed and not getting notifications. #usuck