For the people who didn't have issues with Fel Iron, was it a level 90 or a level appropriate character? My guess is that the only people having issues are level capped players. My monk certainly had no issues with herbalism until he got to Pandaria.
I was leveling my monk in Hellfire and Zangamarsh yesterday. Started at 313 Mining and am at 358 now. Didn't have much problem except for a level 90 Blood Elf waiting until I would get close to a zone then swoop in on her faster mount and collect it. I just went to Terrokar Forest at that time. Should have more than enough Fel Iron to progress engineering on this character and Jewelcrafting on my monk. Monk is only 62 so has a few levels before heading North for Cobalt.
I just did 3 complete laps of Hellfire and saw only 2 fel iron nodes, and was ganked when I landed both times. In the past, I stopped mining because I was tripping over the stuff. Now, the zone is so heavily farmed by 90s and so full of griefers that it is nearly impossible to quest or farm there for lowbies.
Have a friend from a PVE realm invite you to group and have them pull you to their realm. Ganking stops, problem solved.
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