well, it seems that on average people were having the same problems as me with the key drops, except for the solo farmers.
Im fairly sure that the key drop increase was localised to Cantha only, so the Tyrian and UW/FoW Increase in drops are just coincidental, unless it unintentionally effected Tyria.
I too spend alot of gold on keys for runs, this seemed to be the more profitable, and I did get some quite nice items
I think that what this does show is the REALLY low rate at which keys drop!..
I would kindly ask that ANET to consider keeping the increased drop rate (maybe increasing further) as a permenant thing!
I notice that most people hardly ever do the side quests, and only go out to explore for titles or skill capping, the excitment of finding a key and opening a chest certainly would make for more enjoyable game play.
Maybe in future chapters Keys could be offerd as part of missions rewards.
Well, all in all I would say I really enjoyed this weekend thanks ANET.