Why are low standards for dps acceptable?

[Reisui]

Completely agree. By the way the lv 1-49 or 1 to 59 doesn't help in nothing from the class rotation. So people take lv 50 without knowing what a rotation is. And when they are new to 60, no one tells them the new rotation.
Even on youtube it's hard to found a good video that show how to play your class. People saying on dungeon ''Do you know how to play your class ?'' . Of course that they don't because no one never teach them on a polite way.

But when we wanna teach on a polite way, we still get negativity like 80% of the time...