You Really Should Run a Bitcoin Core Full Node: Here's Why
On day one of the 2017 MIT Bitcoin Expo, Sia Co-Founder David Vorick, who has contributed to Bitcoin Core, gave a presentation on the important role played by full nodes in digital currency networks. In his view, economically relevant full nodes are the ones that have “voting” power (for lack of a better term) in attempted hard-forking changes to the rules of Bitcoin.
https://bitcoinmagazine.com/articles/yo ... heres-why/