My highest rated comment ever came in gunnit about a month or so ago, actually (I'd post the link, but gunnit is blocked at work because it's a "weapons site." My username is TerminalHypocrisy). I explained the 2nd Amendment, and then argued with folks about whether or not it allowed for the private ownership of nuclear weapons.
I don't post in reddit nearly as much as I used to....only when a really juicy comment topic comes up in r/guns or r/libertarian. I occationally troll r/politics just to piss the Hive off.