Instead, it sounds like Mr. Goldman just wants to bitch. He feels like Scribd used him? Did he not use Scribd? At least Scribd provided value to him (as he indicated); whatever value he provided Scribd, he is now trying to destroy it with this blog post.
There was a submission on here last week: If you are not paying for it, you're not the customer; you're the product being sold. (http://news.ycombinator.com/item?id=1684732).
I never use Scribd, and I'm not really concerned either way with how successful they are. But I'm starting to get really annoyed with everyone's sense of entitlement these days. Louis CK hit it on the nose with his remark, "How quickly the world owes him something he knew existed only ten seconds ago." (http://barefootmeg.multiply.com/video/item/56 - it's a great clip if you haven't seen it)