...
Why is this a good thing? I would think that mining a currency would need to be a very low and steady thing over the course of time to always ensure miners that there will be profit to be made when mining coins... Why would you want to produce 85% of your coins in 4 years? That doesn't make much sense to me.
Monero has a "tail emission" of 0.3 XMR. So we will never be 100% fully mined. The block rewards will slowly dwindle down to 0.3 and stay there forever.