
424 nodes and climbing.
Bitcoin is asking people to make donations to node operators, nothing wrong with that, but having nodes paid gives a strong incentive to get one and keep it active.
Does this reduce the payout to miners? Yes. That's a stupid question.
The question is about value. Does this reduce the value miners get? Well, no. Nodes are part of the anonymity layer. They can also do other things and get paid for their trouble. All this gives value to Darkcoin, which keeps mining profitable over the longer-term.
Miners and Master Nodes are symbiotic. They create a self-reinforcing decentralised ecosystem.