You can't actually discuss anything on HN that goes against the moderator's petty ideologies (or yc's profit motive) without being censored. Turn on show dead and take a scroll through nearly any topic.
The irony is that many of the people who claim to be free-speech see nothing wrong with this platform blacklisting people who don't share in the groupthink.
HackerNews is notorious for censoring anything that falls outside its groupthink or threatens a portfolio company. It's actually one of the more aggressive censors on the internet.
By all means though, let this guy keep posting:
https://news.ycombinator.com/item?id=28514405