Yes, but you did not read the title did you. It's an obvious Jab at the fact that FB overcharges. However the point was, the OP made a net profit of < 10k. The OP used it as a facebook EVENT not a click-through link. So this is not an Apples - to - Apples comparison.

You're almost wilfully ignoring that the poster is claiming that he's devised a way of making $10000 profit at 3000%+ ROI but decided instead to make a startup aimed solely around facebook ads - which coincidently were the things he took advantage of to achieve this massive product.

Surely something with stats as lucrative as this yard sale would mean that he would create a startup based around selling other peoples stuff after advertising through FB events instead??