I might have missed it but danosphere, how are you guys enabling smart contracts on your blockchain? Cause the whole certificate thing looks more like asset on next and not really a smart contract. Another query I had was, how do you stop people from issuing worthless certificate to bloat the blockchain?
I will let Dan answer the first part.
But in relation to blockchain bloat the fees involved would mean it would be quite expensive to do.
It is the same for the other commands.
As per namecoin, fees are based on blockheight and command type and will go down on a sliding scale.