Why are almost all of exfatloss's comments dead? Looking at the content of the recent ones, it looks like either someone has a grudge or there's a serious glit

Why are almost all of exfatloss's comments dead? Looking at the content of the recent ones, it looks like either someone has a grudge or there's a serious glitch in HN's moderation systems. I vouched a few, but it doesn't seem to have any effect.