IMHO technically speaking the concpt of a Blockchain and decentralized zero trust computing like in Ethereum are indeed "interesting" as concepts.
But in practice there are a ton of issues with current implementations and it's likely not going to be used on a large scale because zero-trust doesn't scale well.
That's just BS. Keyloggers only need to a simple win api call (SetWindowsHookEx with WH_KEYBOARD_LL) and you are good to go. No admin rights required. You won't get events from elevated processes, but browsers run in regular userspace so you can capture everything.
IMHO technically speaking the concpt of a Blockchain and decentralized zero trust computing like in Ethereum are indeed "interesting" as concepts.
But in practice there are a ton of issues with current implementations and it's likely not going to be used on a large scale because zero-trust doesn't scale well.