I recently noticed that a channel I subscribed completely gave up. She used to have a lot of reselling and business content, and even had an Amazon Liquidations storefront, etc. Now all that's gone, and she's showing typical rage bait BS, like Walmart shoplifters getting caught and the like, and every video she's wearing low-cut tops to get extra cleavage out there. I have no doubt she's getting more engagement than she used to.
She already had a decent following and a channel that was several years old, and I assume that played a large part in her initial content pivot success. I assume most of her original followers would be annoyed and eventually unsubscribed, but honestly, I didn't notice her shift for a while (looks like her last legit business content was about six months ago)
I've seen this repeated all over the internet, but it's far from true. CPM/RPM on adult video is way, way, WAY lower than YouTube or other SFW ad networks.