/biz/ - Business & Finance

Non mining nodes do not secure the network.

>In fact, non-mining full nodes delay sending your transaction to the one node that really matters: a *mining* full node. Only mining full nodes have the ability to put your transaction in the blockchain, and you want to have that happen as soon as possible. To put it bluntly: “non-mining full nodes” are actually a sybil attack against mining full nodes. “Non-mining full nodes” make the network LESS efficient.

Non-mining nodes do not prevent hard forks.
>Neither a “non-mining full node” nor an SPV client will prevent a majority of miners from doing an upgrade through a hard fork. The difference between a “non-mining full node” and an SPV client is that you will need to update your “non-mining full node” software to keep using the Bitcoin Network.