Sherriff7

Sherriff7 is a gamemaster and as such spends a lot of time constructing dungeons in game.

What he does
The main thing that you will notice Sherriff7 doing is saying "Test" in the chat. He does this to test the ping. He counts the miliseconds from the time he presses enter to the time it appears in the chat, and then through a series of complex equations, he deduces the exact ping of the server.

You may also find him going through chests at your base, being a hermit in dungeons, or ruining your fun when you're ranging new bosses.