[jaffathecake]

Thank you for posting this.

On interoperability, time will tell I guess. I've only been working on Firefox for a few months, but general interop issues are way worse than I realised when we worked together at Chrome. Firefox frequently gets bug reports for not behaving like Chrome, even when Firefox is complying with the spec, and Chrome is not. We end up having to just behave like Chrome.

On developer signals… I'm sure there's better evidence of positive sentiment than Chrome provided, but there's a lot of negative sentiment too. I think it would be fair to call the developer signal "mixed", or maybe even "polarised".