How do I report someone for an In-Game Infraction of the Toribash rules? I caught a farmer using two accounts of the same name to fight. Where do I report this?

PM a Gamemaster (anyone with a dark blue name) and explain the situation to them.
A list of Gamemasters can be found here.

Thank you, Your answer is appreciated!

Also remember to take screenshots. They'll help prove and back up your case if they leave.