Since this is nominally a site that discusses technology and Amazon is itself a major vendor of internet services it is not out of the question to think that they could, with programmers assigned to it and a desire to do so, massively reduce the ability for dangerous and/or banned items being sold on their site. Given that many of these things come from the same sellers and are being purchased by the same people it’s not as if these are all one off outliers. It’s a hard problem, certainly, but this is a company led by the richest man in the world for crying out loud!
If ever there was a reason for state oversight to stop large tech entities from getting away with whatever they want, surely it’s enabling people to actually cause deaths?
Joseph McCarthy has been resurrected but now by the mob.
... and hugely amplifies them, giving them an audience of potentially millions instead of a couple of people chatting together.
Aside from that, all this offensive ranting and bullying, as well as every other type of conversation, is now saved and ready to be mined for advertising or political gain. Advertising is annoying but can be lived with, it's the political data-mining companies that are a real problem. See, for example, Cambridge Analytica.
Arguably, without these shady political entities and their data mining capabilities, and the amplifying power of Twitter and Facebook, we might not be faced with Brexit and Trump.
Or maybe we would, but at the very least we need to consider this and can't just say, sure, nothing has changed really. Because things have changed, and are continuing to change, rapidly and in ways we cannot predict, due to the sudden central role of tech giants in our societies.
So I have a theory on Twitter - it's not that Twitter causes people to spout offensive rants and bully people - it's that it simply takes every pub and street conversation that happened anyway and makes them publically available.
(yes there is an effect of reinforcement that the pub conversation would not get so it's not perfect analogy)
Amazon is similar - they are trying to become the marketplace for everything sold in the world - which will include the crap, the counterfeit and the simply useless.
It kind of is Amazons problem, but like Twitter and Facebook, they are not causing it, and it won't go away if we stop Amazon somehow.
It's us and our societies.
Edit: there is a secondary effect here (linked to Google as well) that is no-one would buy from "some random dude selling pills on a street corner" but Amazons big tent lends him some of Amazons credibility.
Thirdly we often moan here on HN that Google just returns mainstream results and we cannot find the out of the way stuff - but in these cases that's exactly what we want.
So I am not sure if this is an Amazon search problem (don't return counterfeit products - cost bourne by Amazon) or of it is an enforcement problem (police arrest counterfeiters - cost bourne by taxpayer) or something else like only buy from reputable providers (cost bourne by purchasers)