Ugh. There really should be a logical fallacy around the fact that Hacker News was incorrect about Dropbox and other companies, and how it's not a license to ignore comments altogether. I really wish people would stop referring to the Dropbox story on HN as an example of "ignore the haters because they are wrong." Dropbox, and the other startups mentioned in the post, are outliers, not typical examples, and also cases that people have learned from since 2008.