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!
The one-sided "war" included huge numbers of bot accounts downvoting & spamming the comments section of T-Series videos. 1000s of spam comments all saying the same select few things. These bot accounts used in the cyber attacks will all be subbed to Pewdiepie, inflating sub count