Currently, public sub counts are abbreviated in most but not all places across YouTube. In August, we’ll make this more consistent by always showing abbreviated sub counts publicly. Creators: You’ll still see your full sub count in Studio! Learn more → http://yt.be/help/abbrev-count …pic.twitter.com/pmaKk4EU4k
Better solution, make it more consistent by not abreviating anyones sub count. Every sub matters, not just to the creator but also to the fanbase. Abbreviating the sub count for fans takes away a lot of meaning, and makes light of the individual subscriber.