After over a week of trying to get a meeting with @TeamYouTube we finally have one scheduled for an hour from now. If you have any constructive feedback to share with them regarding the abbreviated subscriber numbers (via the api), reply to this tweet.
IF it TRULY is about keeping it seamless by abbreviating then they should at least have the API save the real number and it show the real number if you hover over it. Twitter does this already. By taking it away they are blatantly saying this is to combat cancel culture.