And most of it is unnecessary. Git commits already have identifying info tied to them so there's no need to maintain a separate list of 'owners' using this thing when you can just `git blame`.
Merge to earn uses smart contracts to make this possible in a permissionless and automated way. It also doesn't impose projects to use any cryptocurrency (only ETH is always accepted, any other must be explicitly specified).
I'd be more interested to hear opinions that go beyond the crypto = scam argument.