I'm genuinely curious what the HN crowd is going to regard as "controversial opinions" that will get you in trouble.
it could be you are talking about the one that starts here:
https://news.ycombinator.com/item?id=23867618
dang gets around to taking notice right about here:
https://news.ycombinator.com/item?id=23868001
dang says: "We've rate limited your account again for perpetuating flamewars on this site."
you said: "I've been explicitly told by the HN moderators that my opinions on policing - which are well within the American mainstream and probably a touch left of center - are so controversial they constitute flamebait and I shouldn't discuss them here."
that does not to me sound at all like a good-faith representation of what dang said.