Seems to me more like entering the doors MA forgets to close (or they open willingly for a while) after some VU's. At first 1-2 hunters realize a certain loot is dropping from a certain mob they hunted for a while, or the loot is increased all-together, then they tell to another 1-2-3 close friends. The boulder rolls until most of the upper echelon players are grinding the same mob for days in a row until MA close the door.
Same with mining, with some rare ore spawning where it should not or with higher intensity. This get milked until, in MA view, they "patched" the economy then the unusual nice spawn disappear. In crafting, is craft as much a possible after certain VUs in order to loot some new BPs which will not drop often anymore afterwards, so either they can craft and control of a new item (with nice MU), or sell that BP for insane amounts.
Barely a brain-storm...
@ KIM one question, the new avatar system will increase the system requirements needed to play the game (minimal memory, graphic card)? It would be nice to know before hand, hardware cannot be acquired immediately.