Yeah, I've read a bunch of stuff from Agrawal before - his criticism of Groupon isn't particularly new. I'm not saying that his issues with it aren't legitimate (I don't really disagree with anything that he's saying), and his stance against Groupon is probably motivated by conviction rather than profit (he's made a great case for this on Quora at
http://www.forbes.com/sites/quora/2012/04/06/is-it-ethical-t...), but it would be a lot easier to accept these types of things from someone without a horse in the race IMO.