Sometime during the end of May, a patch to the massively multiplayer game world of Guild Wars 2 led to a change in the drop rate of an extremely important end-game item: Globs of Ectoplasm. The result caused prices to suddenly rise by almost 33% and an exchange erupted on the forums as to the persistence of this sudden change. Through experimentation, player communication, and community reaction the developers eventually looked into an fixed the issue. Further reading over at the MMO Anthropology blog on Tumblr.