I'm glad you understand =]
Ideally that's sound. In practice though the DF is the wild west and rather than expecting everyone else to improve to your standards, it's easier to suggest that the individual with problems with everyone else step back and maybe look at their own stake and options. The people we are discussing likely aren't even on this forum to read this and either wouldn't bother or wouldn't dare join in the discussion.
And that responsibility to make it enjoyable is up to them. I find that dwelling on the 1 or 2 randoms a week i get that are "poor performing" is a useless frustration about something inconsequential. It's hardly an epidemic of bad players. I would dare to say out of 4-8 runs of things I do a day on my gaming days it is a rarity to have someone noticeably bad in a party, even less so if I don't police everyone and LOOK for poor performance.
I just feel that in the scheme of things the ask to "git gud" is a lot more demanding than a stance of "whatever, i'll never see these people again". Maybe it's sad that apathy comes easy or that I just perceive the entire thing as a waste of time anyway and I'm enjoying just playing the game.
... and I don't know what a "free cure" trap is.
I believe that in a time waster like any video game nobody is owed a particular experience, optimal or otherwise, but in general patience is a more desirable thing to practice than harrying.