I'm haunted by the criticism Dropbox received from HN users when they posted their project here. While I respect the views many of us have, I think this has the potential to have the StackOverflow effect where the community makes the whole process miserable and worse.
Note well that the most famous example of this is a misreading that has snowballed into a kind of cultural legend. The thread in question was about Dropbox's application to YC, not the value of Dropbox itself, and the feedback was constructive and well-intentioned.
https://news.ycombinator.com/item?id=42392302