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@sun Okay, thanks for letting me know. Just to be clear, I'm not against did:web, it can be one of the blessed methods and I'm willing to support it in Mitra. I demoted it only because I thought no one is working on it.
And generally, I'm open to feedback. FEP-ef61 is a work in progress, there are unsolved problems (collections are difficult), and some parts of it will certainly change as we get more feedback from implementers. But not did:key compatibility - this part is very important for me.