Replying to @stevefaulkner and @othermaciej, @AmeliasBrain, @patrick_h_lauke, @w3c, @WHATWG
They mean and matter — but I would think a lot more to a different, likely more relevant constituency.
It’s like asking car makers to discuss traffic congestion. They’ll have opinions for sure, some of them might even be good, but you really want the urbanists.