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
It's useless, even armful for the creator on the platform ... it really is a total nonsense for you to work on that, and doing nothing about the real problems on YouTube.
"I do what I do, and you do what you can do about it"