Where I live it’s largely the same though on facebook marketplace and not on instagram. Counterfeit money, weapons (which are almost completely illegal where I live, even basic non-lethal things like pepper spray and tasers) and more than anything prostitution. The thing is, these are “sponsored ads” which are all supposedly screened and approved manually. Also you can report them and Facebook won’t take them down.

Before someone suggests it cause I’ve seen this response a couple times in this thread already: No, I am not searching those things or related products on Facebook or elsewhere on the web.