Just say you are afraid of meters lol. Its okay to admit it. If there are groups of people who would honestly require screenshots of dummy room dps meters, then that tells you to avoid that group. Heck, a dps meter gives you an active tool of finding who to avoid, in this case, because anyone spamming it as a requirement should be avoided.
And it would just be nice to min/max down to the very last 1% of extra damage. As it stands, pit clears or boss kill times ARE not reliable, unless you are proccing the exact same buffs and buff uptimes every time you run through and have changed 1-2 variables.
Lastly, either way, a nobody’s opinion is a nobody’s opinion–blizz either will or wont implement a dps meter, along with an in-game AH. They just need to see whats trending in the forums