Damage meters will inevitably show themselves in this game, it's just a matter of time. They're a useful tool but at launch I think the worst thing for Bioware would be to promote how much DPS you're doing, I think they would rather you focus on your characters development and the choices you make while leveling up. Once end game becomes a bit more of a norm and guilds are formulated and people are capable of working together to get raids worked on then I could see them opening it up to some addons that analyze battle data as it would almost certainly have to happen.