I think its odd that this is the only coin that has this mining structure. Reason is once mining is over you have to hope miners stay to mine fees but nothing guarantees this will happen. By doing what Fox does it ensure you will have miners for the next 200+ years minting new coins not relying HOPE that miners will stay to secure the network.
This is what I was also thinking about. Very unlikely that miners will stay and support the coin if it pays only transaction fees. Fox guarantees that miner will get paid for what they're doing.
Wasn't sure that FOX is the only coin with such a structure though. Really?