You can't attack another user like this on HN, regardless of how you feel about the police, which I'm sure you have good reasons for.
We ban accounts that violate the site guidelines this badly, so please review https://news.ycombinator.com/newsguidelines.html and don't do this again. Maybe you don't owe the person you're replying to any better—though if you're blasting them just because they belong to a category, maybe you do—but you definitely owe this community much better if you want to participate here.
