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 is bullshit, I bet this update will just remove few active subs I already have on my channel, and will not do anything helpful anyway. This is another way for youtube to round up this year of fuckups!