Commendation performance?

[Kikoten]

Do commendations affect us in any way? What exactly are they for? Are they going to become currency at some point? Or do they affect the rate at which you get into dungeons (IE people with higher commendations are selected via Duty Roulette over people with lower commendations)? Should I be worried if I don't get any commendations? Am I a jerk for leaving a duty when it's over, having not said anything along the lines of "Thanks" or "See you again!"? Am I a bad person for not commending anybody? Why are Roegadyn women so rare? And most importantly, what is the point of commendations?

These are just some questions I've had along the way, from the time of my humble beginning to my not-so-humble now.

[Noxifer]

Do commendations affect us in any way? What exactly are they for?

They're part of achievements, just the same as "do X number of fates" or "kill X number of mobs".
At 10/50/100/300/500/1500/3000 commendations, to be precise. Some give titles, some give item rewards to claim from Jonathas. Just check the Achievement log =)