I'd say the HN community has a higher than average grasp of statistics (the same could probably be said about many other entrepreneur communities) As such, when we see something which all broad statistics tell us is "one in a million" occams razor directs you to assume that it is in fact one in a million.
That "let's be extremely doubtful given a high bayesian prior suggesting that the doubt is legitimate" occurs strikes me as a wonderfully pragmatic viewpoint. If someone really wants to convince me there's some "trick" to being that one in a million they have to go against all of the evidence I've been presented thus far to say that simply doesn't happen. (evidence coupled with the fact that these sorts of news sources have a history and incentive aligned with the "how to strike it rich" style articles.)