I am curious about what exactly has happened. My knowledge of how this coin actually functions is pretty limited, so perhaps someone can explain how the staking stopped and then when it started again it appears to have had a retroactive effect, catching up with at least some of the lost staking. Does this require monkeying with the code? Can somebody at GAW just type this into a spreadsheet to make it happen? This graph section shows the "catchup" staking a bit more clearly.
http://i.imgur.com/XC0I2Su.jpg200,000 XPY created in a single day? Couldn't possibly be an inflation issue....
My understanding of POS is also limited but I think the amount of stake depends on "age", so if the wallet was sitting for a few days idle and then started staking it will "catch up" so to speak. That part is likely normal, the crazy APY is not.