User blog comment:Taldin/Some thoughts on redesigning the Boss/Quest Lists... Again/@comment-4515751-20151216200805/@comment-25085701-20151217022628

Of course, its polar opposite is 'Difficult Quests for Sturdy Habiticans.'

"You should only attempt these quests with a party that is reasonably dedicated to vanquishing their errands and completing their dailies.   The bosses in this list are tougher and hit harder, and some of them even heal themselves if you miss too many dailies."

...or something like that.