@aud Well yeah, that's the ad-network effect for hyper targeting which is a whooole other thing than video game statistics correlating to one another. Like, "what other kinds of games do people who buy my game also buy" (note, this is a thing that DTRPG tells me) can be useful to make a better game as you note.
As a related thought point, that hypertargeting also kinda sucks and is why once you buy that bra you keep seeing ads for *more of the same bra* immediately afterward.