Replying to the OPs idea.

I personally want to see how im performing while i am inside the instance, this helps in improving on the spot after a wipe, or in a successive run, only having one run show post-instance just isnt really good, also some statics look over their wipes in fflogs post raid day to also determine what they could do better, or what they could change, a scoreboard like that wouldnt really give enough information to those of us who want it.