Miners are the oft-unacknowledged heroes of the Ethereum blockchain. They process user transactions, add blocks to the chain, and help keep the whole enterprise running by competing to solve cryptographic puzzles.
While they’re rewarded with 2 ETH (about $4,000 at current prices) plus transaction fees for any block they’re able to mine, they can often bag more.
The catch: To do so, they have to tinker with your transactions.
What Will Happen to Ethereum Miners After ETH 2.0?
Welcome to the world of MEV, also known as miner extractable value or sometimes maximal extractable value. It refers to how much Ethereum miners can make—not simply from processing users’ transactions and adding blocks to the chain, but by choosing what goes into each block and in what order.
Miners have a lot of power in this regard. As Charlie Noyes, a partner with cryptocurrency investment company Paradigm, wrote in a blog post in February, miners can „arbitrarily include, exclude, or re-order transactions wit
Źródło: https://decrypt.co/76570/how-ethereum-miners-could-exploit-network-how-fix-it
