For those who are unfamiliar, ghetto-hearthing (or ninja-hearthing) is when a player joins a group, enters an instance, and then leaves the group again. Up until now, doing so would cause the player to be teleported to their hearthstone location after 60 seconds -- even if their hearthstone was on cooldown! However, as the above screenshot from the 3.1 PTR shows, it looks like that will no longer be possible.
So goodbye ghetto-hearth. It was fun while it lasted. And hey, if I'm ever in the mage district of Stormwind, and I need to get to Elwynn Forest in a jiffy, I'll look you up.
Patch 3.1 brings us Ulduar, dual specs, significant changes to all the classes, and more! We've got you covered from top to bottom with our Guide to Patch 3.1.