What the hell has Felix Salmon ever done?
Felix Salmon is a journalist. He provides value to the world by reporting or critiquing -- in this case, critiquing the notion that Andreessen and his business practices are worth venerating or emulating.That he has not built a successful start-up is entirely unrelated to that point, much in the same way the fact Roger Ebert isn't a director is unrelated to his critique of films.