I wonder...
...if she was getting tired of the adpocalypse and YouTube's recent move to get rid of "bad actors" with few views and subs from the monitisation program which instead just knocked off loads of people that were just trying to start out. Or sick of the YouTube bot that goes round a demonitises a video for "not suitable for advertising" when all it is, is a video watching the sea, only to realise the bots mistake a few days later when it is now to late to make money from the adverts.
From what her dad said, it sounds like it.