Quote Originally Posted by Kikoten View Post
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 =)