Every GM may react differently to "Offensive Language". But the general rule of thumb is, you will get warned/muted for cursing out members of the community on a personal level and potentially banned for Racial/Homophobic/Religious/Ethnic/shaming slurs.
Comments such as: "I hope you flaping die IRL" -- Will result in warning/mute (unless it's a repeated offense then potentially ban).
Racial/Homophobic/Religious/Ethnic slurs/shaming can surpass warning/mute and end in a ban whether temporarily or not.
We look to make the Community a safe place for *all* of our members. That being said we look very closely to see what is within RP insults and what are personal attacks. If you have any complaints about Staff decisions you are free to message me for further review although I cannot guarantee action/reversal of decision for every case.
Thank you for your understanding and for playing Nin!
HITSPARK
Pakku's post in Why is Nin Online getting strict on in-game text chat? was marked as the answer