I just read/saw this on The Lodge Guys thread. If she is buying subs she is probably using this too.
YouTube View Bot | YouTube Viewer Bot
Use the YouTube View Bot extension to easily share content with a large number of viewers. Increase video views on YouTube using the viewer bot by sharing videos with a large audience. Users can use the view bot by entering their YouTube video URL, share their content using the bot and increase their views.
And this …
Why Use a YouTube View Bot?
Bots are used to create the illusion that a video is already popular to attract real viewers who view the existing view count as 'social proof' of the video's quality. The main benefit is that it is fast, easy, and usually free. There are other ways, besides bots, bot accomplishes this, but if a YouTuber is resorting to a bot, it probably means they don't have the money to buy real human views or the time to participate in a view exchange platform.
Bots can also be used to generate comments and likes for videos.