Worth mentioning the cryptocurrency that Bram Cohen (inventor of bittorrent) is creating that is explicitly designed to be low-energy usage and more distributed: https://www.chia.net/ It uses "Proof of Space" (proof that you're allocating a certain amount of storage space) instead of Proof of Work or Proof of Stake. Pretty interesting and they're coming out of beta into their mainnet in the next few weeks. Their on-c…
I mined BURST for a while, another PoS coin. It's been around for 7 years, works great, and solves the PoW power problem. It's got a lot of functionality built in for the nodes, like messaging and marketplace functions. And nobody cares. If I had to guess, I'd say the attractiveness of mining the PoW coins is that it's very expensive, but accordingly very rewarding. When the coins are cheap and easy to secure as a no…
If they did that, they'd get over the "we're not bitcoin" hurdle, assuming the tech was any good.