[NoGravitas]

I didn't read all of them, but none of the ones I read were simply business failures; most of them were selling snake oil or non-existent software as a service, or were productizing someone else's open source project while violating their license. That is to say, they were committing various kinds of fraud. Now, it's arguable whether YC could have detected all of these frauds or had a duty to do so, but the page is, to me, extremely valuable for providing examples of the ways in which the tech economy is basically a grift nowadays.