I don't know how behests in 2.0 will work, but at the moment, behest difficulty is scaled by how many people join and what level they join at.

This seems like no problem...

Except that lately, every behest I try at any camp eventually has SOME level 50 show up and join, and then not even participate (and if they do participate, they one-shot all the mobs and waste all the xp), causing it to become too difficult for me on the class I intended to use during the behest.

I'm not entirely sure what can be done about it, but if anything can, it would be extremely helpful