Meritocracies are a scam. I would be livid and would immediately cease playing if they ever considered doing something like this.

I've done thousands of dungeons and trials, with every job in this game; I'm omni-70 on two characters. I've carried innumerable groups, I've been in Doma Castle with a Mentor BLM wielding a freakin' broken i142 Halonic weapon, and I still would not want this.

Why? Because 1.) I remember when I was a baby MRD in Sastasha that didn't know what Overpower was or did, 2.) I remember the first time I entered a dungeon on something besides a tank and could see how potentially better players approached things, and 3.) I've done so many join in progress runs on tank, healer and even DPS that were awful - and learned ways to improve myself (while carrying!) quite often.

Fairness is giving everyone the same opportunities that I (we) had, whether they choose to apply themselves or not. And responsibility is knowing that when you hit up DF, you may not be getting people at your skill level. The answer to not wanting to deal with DF is to make friends, not impose asinine limits on people perceived as beneath others.

/rant