I was wondering after a post about pedants appeared in my feed and some commenters would get it confused with "grammar nazi" etc. In Norwegian we have a colloquial word for pedant (flisespikker), but not a common word for grammar nazi. But we do have a term for a "stickler for the rules": "Regelrytter" which translates to "rule rider". Feel free to share what any of those terms are in your own language. 🙂