Currently it would take 78 BTC worth of XPY to find out if these work. If the historical Paycoin Price Plunge continues at near the same rate it has been, this should be down to 1-3 BTC in a couple months. For that price I would try it, just for shits and giggles. Not that 100% continuously compounding interest would make you a profit when the coin is losing value so rapidly.
I was thinking the same.
Using the leaked keys it would be possible to achieve 100% per year staking if you bought 125k XPY. But to break even on that you would need to be able to sell for at least 50% of what you paid for it in a year's time.
The way the price continues to plummet it seems very unlikely you'll be able to break even, even if you do "cheat" and use a prime controller key like those at the top of the paycoin foodchain do.
The math on this, like every "project" since the launch of paycoin only makes sense if you start with a bunch of coins created out of thin air.
