Commendations are pretty random. Two days ago Dr EX on AST Neverneap the blackmage ignored ALL adds at bosses so I dpsed like hell at the dps check bits to help the other DPS (minimum ilvl can make that a close call) and he even ran off platform last boss so had to spam aoe heals and keep my dots up. I left - no commendation, even tho imo I deserved it move on.
Another one DR trial bismarck my second time, firsttime tanking it... dodged aoes fell off DX actually till that didnt know you could fall off lol... we wiped. Second pull i manage to try to step onto bis a second to early and I fall off again was last bit tho and we or more they killed. I left and got a commi. I think because made them laugh XD


But at all I get mostly commis for being nice explaining, being patient rarely for just good performance. Had an aery in dr low all other 3 were new they asked me to explain everything I said try blind run and enjoy. Yeap we wiped last boss once but who cares the people were nice I gave my commi and went out with 3. Other day you end up solohealing an ex primal in DF and get nothing. Who cares? I am glad about the commendation shower that comes with HW as I level again and DF stuff so get closer to parade choco but thats all commis mean to me.