I love the conclusion of this article. As someone who has participated in the online "deals" community for 10+ years, I have definitely benefitted from many of the opportunities.
However, I do spend a considerable amount of time wondering what will happen when this house of cards comes falling down.
But you know, I think that for every one person like me taking advantage of these "arbitrage" scenarios, there are like 10 people paying full price. They keep this economy going.