Getting viral on X is the current replacement for selling courses for {daytrading,amazon FBA,crypto}.
The content of the tweets isn't the thing.. bull-posting or invoking Cunningham's Law is. X is the destination for formula posting and some of those blue checkmarks are getting "reach" rev share kickbacks.
Yeah, if you get enough impressions, you get some revenue, so you don't need to sell any courses, just viral content. Which is why some (not ALL) exaggerate as suggested.
Same with Linkedin. Ive seen a lot of posts telling u to comment something to get a secret guide on how to do Y.
If it was successful, they wouldnt be telling everyone about it