Reasons I dislike things like these are because like in WoW, many people begin to use it to brag about their damage and then moan at others if they're damage isn't on par at the time of their good amount of damage. You'll notice those people won't broadcast when their damage isn't all that great though.
I used to dislike gearscore and things like that as well, most of the time people were judged on numbers rather than actually knowing what to do.
I can see it's uses, I just dislike what it brings out in many people.
*<JO>*Yanto