IIRC hoping addons stopped working on previous expansions but there are ways to switch servers such as joining a group intended to do another type of content. Is it worth utilizing such things for herb farming now?
I just leveled herb/mining and after a while I found that if I found a spot that had 5+ spawns in the immediate area, it was definitly just much easier to join Quest groups over and over as apposed to moving.
For TBC Classic, there will be implemented delay for layer hoping. To prevent players from explointing that.
Should make it harder to layer jump for herbs/ore.
You can still do so by picking quest groups in your current zone with the same war mode set, but there's a very limited number of those groups so it's not a big advantage just to get an extra herb.