Actually I guess it's not rare now that people can just fly. I jumped with my rogue abilities when the Shattering first happening.

Interestingly, when I stepped onto the surface, I died instantly.

this new since Cata? I don't remember STV having a vortex

It's new since the Shattering, when the world changed. It's in Stranglethorn, its a huge cliff on all sides, you can't get down except maybe

with safe fall, or a parachute, or maybe bubble if that still works. But if you touch the surface, you die

ugh, even more reason to get back!