No one is arguing the scam isn't insidious and inherently difficult to detect for possibly even most customers. The argument is that Amazon is complicit because they're banking off those sweet counterfeit thumb drive profits, and that there's little risk to Amazon.

I'm suggesting there is a significant risk, and anyone reasonable at Amazon would account for it. There's enough users (tech savvy, or heavy researchers as you point out, and ultimately some portion of casual customers) who will have a negative experience and potentially be skeptical of all purchases - major or minor. Amazon will certainly incur reputational and real return/handling costs.

It seems fairly implausible to me that Amazon would make the decision to say "Yeah, while tech savvy and discerning customers, and some portion of casual users will discover the scam, we just make so much money from fake thumb drives that it's worth it to destroy our reputation with that subset since a significant portion may not notice or ultimately associate Amazon with selling low quality products." All while we see the listings for these items get removed nearly as quickly as the pop up. Doesn't add up.