One who uses refined vocabulary, correct grammar, constantly finds themselves correcting grammar and spelling (in forums, chatrooms, tumblr, YouTube, etc.)
First, you have your mild
GNs, they're much
kinder and respectively tell you about your grammar/spelling that is incorrect.
Then there's your experienced
GN, they're much harder on you and constantly
browse through pages to reply to people who have terrible grammar and spelling form.
Finally, there's the hardcore GN, only they have earned the right to sPELL liKe thisss and still be refined, respected, not a asshat GN like most internet GN are. They usually reply with a simple
correction and move on.