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!
how do you know if something is a spam subscription? i'm subscribed to a lot of creators and i haven't watched a lot of them in a while, but i still want to be subscribed to them..