It looks like it was one of the leaked keys. 10 keys at the 100% rate were leaked. And there is only 10 100% keys
Either someone at gaw, the foundation or the xpy dev team isnt playing by the "rules". Or someone with a lot of paycoin is using one of the leaked keys
It could be whoever hacked the paycoin web wallet as I don't believe all of those coins were recovered. And I don't see anyone buying 125k paycoin to stake at 100%
The keys could have been leaked just so those wallets can compound their stake and they could brush it off as stolen keys