A long time ago, jwz used to use Justin.tv for the DNA Lounge webcast, and I used to use his rants as evidence that someone out there cared about a given bug and we should prioritize fixing it.

If anything I think it helped that his rants were rude, since that made it clear how much he cared about the problems.

Startups are different though. What you wrote is probably a lot more true of a company the size of Facebook.