They are TF2 players.
I think "common sense" got lost for most of them quite some time ago already. Instead fury over things like Valve's decision to drop down on wait-servers (oddly and conviently forgotten it seems), hatcollect pandamonium etc. took over...
Sam: "We're 98% certain General Skun-ka'pe is evil."
Stinky: "And the other 2%?"
Max: "That he's crazy and we have to shoot him! But that may be wishful thinking on our part."
(Any resemblance to KOTOR is purely coincidential, really!)