OT: Since I have enabled showing dead links I have noticed one submitter whose stories have been killed for no clear reason:

http://news.ycombinator.com/submitted?id=billpg

He has been around long enough. His stories are about average, not really excellent, but there are worse stories. Yet his last four stories have been flagged to oblivion or removed by someone. I have googled the stories themselves and they were fairly OK. Can someone shed a light on this?