Either you're playing in a manner that paints a target on your own back or you grossly underestimate the number of people that parse.
The overwhelming number of people won't say a peep about dps numbers and such simply because it's a near guaranteed temp ban the moment you put someone's back up.
For most people, they only care about themselves, their static and their triggers.
One thing that is worth noting on this though, even though I'm very much for parsing and such, I do think that even if SE do make moves to build a parser into the game, they should keep to their current rules regarding harassing others over numbers. Simply put, don't do it or you spend time in the GM Jail, no ifs, no buts.
Whilst I do think it's a huge shame that you feel that way, I do at least agree in the sense that a personal parser is a good first step forward. A group wide parser just isn't necessary for casual content and I don't think the community as a whole is ready for that quite yet.
1. have you done a dungeon that takes five-ten more minutes over the average time?
How about over 30 minutes? I've done Skalla in 17 minutes with 1 DPS and 2 healers with FC mates, very few roulette groups do it in under 20.
2. Wiped multiple times in a hard mode trial
The only thing hard about most hard modes is the difficulty in managing to wipe when one of the healers has a pulse =(
3. vote abandoned a 24 man run
Rabanastre's steadily got better now thankfully, I didn't bother with it last week but I'll give it another crack tonight to try and farm up a piece I want.