Simple answer to the commendation requirement would be to change it.

People just commend whoever mostly, for the glamour, breasts or just clickclickclick for the challenge log.

I've personally always said that you should only commend if someone actually impresses you. Otherwise all you're doing is rewarding mediocrity. "Oh, I got a Commendation. I guess I did a good job with all those Blizzard 3 spells." when you just click the only one who is left in the instance watching the CS.

(Not everyone is gonna be that level of bad.)

In my opinion, if they insist on a Commendation system, make it a longer process to award one.

"Who would you like to commend?"
-Tank
-Healer
-Other DPS

"Why would you like to commend them?"
-A reason. Minimum 30 characters.

"How would you rate this players' performance out of ten?"
-Radio button, pick a rating.

"Thank you."

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This isn't perfect, and could certainly be refined, but would definitely cut down on the clicklcickclick commend whoever and make the Commendation system that little bit more refined.