I bet @stoler202 (DonaldJTrump is his nick) is the real Trump!

 

Impossible, I'm Russian. Oh, wait.

 

My Theory: @matrix_rep is one of the Machines
-Matrix_rep stands for Matrix representative, he is one of the machines tasked with representing the matrix security team as a whole in the Machine City.
-Somehow, he avoided becoming any rank higher than Resident, and we all know that that temptation to rank up is too much for a human.
-He desires to feed off of others, but not in a way that a normal machine would. He feeds off of their very life force, trolling them with his light green tag.
-Minecraft is a virtual world, but not for Matrix_rep. His reality is Minecraft, the place where his AI developed.

To sum it up, @matrix_rep is a Machine who possesses Machine-like willpower, and he controls the Minecraft matrix that we are all trapped in. And the server shutdowns yesterday were just... a glitch in the Matrix.