When I turn on showdead in my profile settings I can see your post marked as [dead]. So it is a problem with the domain.
See this post for details: https://news.ycombinator.com/item?id=1691145
See this post for details: https://news.ycombinator.com/item?id=1691145
It could have been my friend, or a anyone else -- in our case there are (pro-gun) people who are hostile toward our project as well.
This is really unfortunate, if it's so easy for anyone to sabotage your domain or project.