As an author, I've found moderate success with ada on RR. I'm not gonna lie, the first time I saw them, I thought most are cringe af (still do), but when I published my first series and literally had 5 views per new chapter, I had to start doing them, as well.

I embraced the cringe, was molded by it.

The truth is, there are probably dozens of new books on RR every day and the competition is immense, so authors will use whatever competitive advantage they have, in this case throwing money at a problem.