This doesn't have much to do with his point. He makes no claim that DDG is a flawless product. And even the most flawless product on the planet tends to have

This doesn't have much to do with his point. He makes no claim that DDG is a flawless product. And even the most flawless product on the planet tends to have (in the grand scheme of things) low conversion rates of the people they are able to bring in. From the growth graphs that Gabriel has posted, he clearly NOT failed at building a good product. Could it be better? Absolutely.