How about a middle ground, between personal parsers and group ones. Since the DF interface already differentiates between pre-made party and random one, I'd suggest it'd be implemented so that you only see the real time parse for the whole party in pre-made party. That way those who want to better themselves and/or help FC mates can do runs for that purpose. Or any sort of raid statics would see whole group performance. However, when being in random DF one would only see their personal parse real time, and only exiting the dungeon would be shown the averages of other party members. That way they could still compare themselves to the others for learning purpose but at that point there'd be no real issue about kicking/harassing due parse since the party has fizzled.