Quote from: Costia on February 01, 2012, 07:27:34 PM

Quote from: hannesnaude on February 01, 2012, 07:19:26 PM

But where's the incentive for a miner to do this?

none
what is the incentive today of miners to include transactions at all? the 0.1BTC transaction fees?

Some miners still include zero fee txs today because it is not a bottleneck in their processing. When it becomes one you can be assured that only txs with fees that cover the cost of processing will be included. Similarly you can expect miners to voluntarily sign txs for you today at no cost. But in an anonymous system where you have no power to punish a signer who reneges, the signature is not worth anything. And even if it was, it will go away when miners become CPU bound. That's the way of the world.

Quote from: Costia on February 01, 2012, 07:27:34 PM

the incentive would be to keep the network working properly, otherwise bitcoins will lose their value.

Nope. The network is working just fine. If you could make 0-confirmation transactions safe (and this proposal won't) that would add value, but bitcoin certainly won't lose value without it.