Millions of people know this and routinely check them for good deals, the propaganda machine has failed to make them "scary"
cheaper than listing on ebay.
Its just cheaper mate
All DNMs offer an expanded audience and borderless payment system that wont freeze your account
That's a pretty big number, would be curious if based on anything more than a guess.
sometimes they even list! lower fees than Ebay. Maybe Ebay and Amazon write those Ask Reddit posts about the "scariest thing you've seen on the dark web" to perpetuate that its scary.