Abbreviated public subscriber counts are gradually rolling out starting next week. We heard a lot of feedback from the community following our announcement in May – we’ve updated our original post with more info here → https://yt.be/help/LF4J
I'd say ok to it if YouTubers had the option to either disable the abbreviation entirely or just for the API (for social lade etc) if they choose so. I can understand that the abbreviation could relieve stress but some might prefer full accurate numbers