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!
This would seem like a good idea but then again it's Youtube. They've shown they're completely clueless lately. T Series hasn't receieved a noticeable decrease in subscribers so you're doing something wrong