I started using Craigslist in the late 1990's before it got 'popular'; some dates, got an apt, sold a few things, bought a few. The big www thing was slowing muscling in on newspaper classified turf but not enough of a threat. There was a sense of community like the Well or BBS dialup days of olde; people trusted it. I think people value routine and endurance and CL was/is? seen as a place to community exchange. The heavy text based simple Web 0.5 UI hasn't changed much since then and yet users still come like people still use vi or emacs. They all drank the koolaid! 20 yrs later, I hear all this talk of data/API entitlement and efficiency is the new Winning! I don't get it? If CL is so lame and inefficient why can't these smart young whippersnappers replicate such a model of community BBS? Grow/Roll your own, collect your own data as the article suggests. FFS, there is no monopoly in the hood. There is some natural selection out thar in the intertubes.