That's a logical fallacy. Someone who has never been a stock broker in their life can still validly point out that a stock broker sucks when the broker squander

That's a logical fallacy. Someone who has never been a stock broker in their life can still validly point out that a stock broker sucks when the broker squanders everything that person had on a foolish speculative investment regardless of how much blood, sweat, and tears the broker went through in losing their money. Ultimately, it doesn't matter how tough the journey is if the product you put out at the end of the process sucks. I don't think it takes an entrepreneur to call out various "me too" social/mobile/local clones for being derivative and void of innovation. The world is a harsh place and effort has never been rewarded; all that matters is results.