I base commendations on who made my job easier. It's fairly easy to see throughout the fight who did what. If I am healer, did I have to heal DPS a ton outside of unavoidable mechanics? Did the tank pop defensive cooldowns to mitigate damage? Did we have an AoE DPS that did the job? As someone stated earlier, you can tell who did their job and who was on autopilot the entire time. Being social doesn't mean much to me if we keep wiping. I want a fun experience, so my commendation goes to that.