ESLint adopts Trunk as new linter runner in their repo

Yes, we sponsored them because we have a commercial product that uses ESLint and we want to contribute back to open source. I don't see why this is an issue.

We also wanted to show them our metalinter, which we believe has genuine use cases in open source. That's why it's free for open-source repos (all public repos).

The CLI tool is also just free for everyone, for ever.