Actually, you do see ads for those things there, and on instagram, and on threads, and many much stranger and more fucked up things. That's part of the entire problem.

These kinds of ads aside, I've also seen offers of free shit from amazon sellers in exchange for positive reviews, "legal"/unscheduled drug analogues, flavored nitrous (free shipping!), unrestricted gambling/prediction markets, and oddly enough cellular/wifi jammers where the ad was specifically targeting semi truck drivers (I do not drive a semi truck, gamble, or search for unscheduled drug analogues, nor do I have an active amazon account)