The issue nobody wants to address

[Colorful]

That's the thing I am interested in - convenience. There is also reason why so many tanks and healers do not play with randoms - out of convenience.

I don't know where you got the idea that tanks and healers don't play with randoms, but they do. Almost every FC member that's a tank or healer does DREX on the daily, even when one of them is a dedicated crafter. Every friend of mine who is a tank or a healer (or both) has and will always use DF. As I said, it's incredibly convenient so "Why not?". There may be a few who do not use the Duty Finder, but that applies to all roles, DPS included. The problem being that there isn't enough tanks or too many DPS. I couldn't care less though early on. As for the later levels, DREX pops within 5 minutes and Alexander usually less than 5 during primetime as a DPS. ¯\_(ツ)_/¯

I wonder what would happen if the entire playerbase started putting in as much effort as the average df person and nothing would ever be cleared again.

There are times where I get the urge to do that myself when I get a DPS doing sub 600 in almost full i200 gear, and a Warrior doing 300 or less DPS and not applying Storm's Eye either (or applying it at random). I'd be punishing myself too, so I'd rather not. But it is funny the people who go in with "It's Duty Finder, I do what I want" mentality, imagine if everyone shared that mindset? I do feel bad for the Healers that can end up with both a bad tank and two bad DPS. =l