DPS display could easily be solved with a system already in game.

[Kallera]

How does me pointing out that someone's view on a subject correlates with the fact that they don't push progression when it's relevant, somehow translate into me shutting them down and devaluing their opinion?

Like it or not, the inclusion of a public parser would affect their experience as well when the progression populace decides to go to other content, as well as those that approaching progression content and are sandwiched between the two groups.

The consequences of the parser will be brought out in all dungeon content. And affect each player in turn, regardless if they are intentionally bad.

Even in this thread people are making assumptions of players with just chat. When does "name and shame" become "giving statistics" and letting the chips fall where they may on what value in which dungeon invites consequence?