A lot of people use AI, some even are unlucky enough to post online before learning its a faux pas. Some few are oblivious enough to go for some time before realizing.
A select few decide that this is their opportunity to industrialize production of slop for profit. It seems that when platforms take steps to curb excesses like people posting thousands of products/posts/books/games/videos/whatever a day, the volume drops dramatically, because its these villains posting thousands of times a day that are responsible for most of the nonsense
and as with this woman, whenever they see a modicum of success extracting money from the commons, they immediately pivot to selling courses, so other malignant souls can clog up the shared processes of humanity with their crap too.