This argument relies on Quantcast data that's not directly measured. When sites such as Compete, Quantcast and Alexa take a stab at measuring site traffic witho

This argument relies on Quantcast data that's not directly measured. When sites such as Compete, Quantcast and Alexa take a stab at measuring site traffic without direct measurement (like Google Analytics), the estimates they come up with are always way, way off. Unless there's better evidence that Craigslist traffic is declining, I don't buy it.