Both skyreach and black rose prison (brp) award large amounts of exp. When you're in a group with 1 other person you gain more exp as well, so going to these places as a duo is a fast way to level. Having a low level character pay for a high level character to clear the place for them allows people to level low level characters very quickly, and if both characters are high level then they can get a lot of champion points out of it as well.

AvalonRanger wrote: »

So, simply say. Those people want just tank right?

They are for the fastest as possible "carry" through the place, especially if paying for it they're expecting experienced player that know how to speedrun skyreach (right mob gathering and placing) and nukes brp.