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!
It'll be fun to see Pewdiepie's subscribers drop down to 50% of what he has now when you purge all the fake accounts his fans have no doubt made.