I don't know how people manage to talk during the fight. At least as a melee DPS, it's almost impossible, at least without losing DPS.
Well, I'm not slow at writing, but also not the fastest. Still, if I would write, it'll look like that: Ni2ce wwwjo3b§! (Nice job!)

I think increasing commendations would be great. 1 Commendation in a 5-man party is ok, but at least 2 in a 8-man one would be nice to have.
And as a extra, maybe a "commend whole party" option, which you can use 1 or 2 times per week, would also be good. For the special moments when everything went great!