The issue nobody wants to address

[Archaell]

...

I don't actually expect dps players to do their best. I expect them to do well enough.

btw. I have nothing against tanks (ok, maybe a little bit, as I want to dps too ^^) and healers who dps. If the situation allows it, dpsing as tank/healer can be really rewarding. But tanks and healers should not substitute for poor dps, they should provide it as an extra - As you said it leads to nice runs.