I certainly aren't human after having to deal with nasty comments on IEBlog over the years ... and I guess now, unfortunately, even on news.yc ... I guess I should be happy it hasn't deteriorated to death threats in here yet (like it has at other places) :/
It's not fair at all to take it out on individuals on the IE team or do something stupid like threaten physical violence (and I'd fully support someone being called out for that), but letting people rant at your organization as a whole keeps people sane. Leaving Posterous because a designer finally hit a boiling point in frustration? That's just as bad.
FWIW, I can appreciate how hard it is to work on a team where you're fighting both the legacy of your old products and the decades-old impression of Microsoft as anti-web. Every version reduces the amount of frustration we encounter and every version that drops off makes us all that much happier. We're glad to see IE join the forefront of the browser race again. :)
You can't really fault Microsoft because IE6 has yet to drop off. To their credit, Microsoft has made large strides in getting users to upgrade, but as reported in the past a lot of corporate customers are unwilling to upgrade. I'm sure a lot of people on the IE team would like to see IE6 die as much as the rest of us.