replies(1):
Safari/webkit is positive (though no official stance yet):
https://github.com/WebKit/standards-positions/issues/339#iss...
> The spec assumes a certain form of translation backend, exposing information about model availability, download progress, quotas, and usage prediction. We'd like to minimize the information exposure so that the implementation can be more flexible.
reads to me as Chrome once again trying to export itself verbatim as a "standard" and Mozilla pointing out that that's not really applicable to others.
Also the WebKit post seems to raise somewhat similar arguments but on the basis of fingerprinting/privacy problems.