I get that the old hunter are for fun and are cheap content for DBG to add. I get that few will care, and even fewer will have worked on them already. I get that first-responders are frequently rewarded or punished for being early-birds. And I had fun knowing those who followed would have better notes and information (yay Orbital). But it's extremely disappointing to have completed all hunters to date - only to find 13 (THIRTEEN) zones back on the list that were completed. Some of them for the same mobs we killed 100 times, just with new names to differentiate. Credit removed. Achievement taken away. Worthless nerd points subtracted. Until you go work that zone some more. To re-earn it. Disappointing and a bit less fun going forward with the 4 new expansions, knowing it's a moving target.