Tinfoil 1: PLEX rising prior to announcement means CSM leaked the data and influenced prices
Tinfoil 2: PLEX falls prior to announcement means CSM leaked the data and influenced prices

Choose

So these old accounts I have with 5500 AUR each I was given as part of the promos held post "summer of rage"....

I like all the changes, and understand from a gamedesign point of view why this is happening, except how the PLEX vault would work. So I would like to make some suggestions on how to improve it and fix the main problem.

The only real problem with the Vault is that it makes PLEXes a virtual item accessible from anywhere, which goes against the whole philosophy of EVE.

To change this I would make the Vault a physical place and PLEXes a physical item. You would still be able to exchange them for game time or use them to shop in the New Eden Store from anywhere in the universe but you would only be able to sell them where they are being stored. If you would like them somewhere else, for selling or any other reason, you would still have to physically move them to that location.

Regarding where PLEXes bought from CCP would appear I would make players choose a main Vault the first time they buy PLEX where it will spawn in from then on, you should be able to change this location though to match the current system of redeeming. Moving this location should not move the PLEXes being kept there though only where new ones would appear when buying from CCP. (you could also make it toggleable option so you can choose where they appear for every time you buy them)

Since new players not understanding that they can loose PLEXes when they go out flying with them, put up some big red letters telling them the risks when choosing your primary vault and when you try to take them out of the Vault. (of course you should be able to choose if the warning should appear every time)