Comments from banned users get killed automatically. I've unkilled that one. In the future, if you see a comment that shouldn't be [dead], that's what the 'vouch' feature is for: click on its timestamp to go to its page, then click 'vouch'. You're also welcome to email hn@ycombinator.com and let us know, so we can unkill it. But please don't noise up the thread by posting offtopically about it.