Oct 21, 2019

Concerning - The cost of hybrid mining is the combined costs of work and staking, inclusive of capital cost. The return on mining investment necessarily equates to capital cost, as a consequence of competition. As mining is profitable, capital cost does not contribute to security. Achieving majority stake is no more costly than achieving majority hash power. The theory is therefore invalid.

If staking requires providing network crypto infrastructure such as additional full nodes there is a security value for providing those staking services. However, most staking coins are not providing such a value added network security service.

Increasing the number of full nodes protects the network’s ledger. A State actor can easily take down a few nodes, but taking down a 1000+ nodes is much harder. Staking that increases the number of full nodes is good for security of a crypto.

The health of a crypto network can be measured by both its hashing power and the number of Internet network reachable persistent full nodes.

Contrast the number of LTC full nodes documented at https://chainz.cryptoid.info/ltc/#!network to the ~5K routable full nodes at https://chainz.cryptoid.info/dash/#!network.

No :)