Standard.site is the first time I've strongly felt the community governance & coordination challenge because it inverts the decision model.
Typically, lexicons are decided by the originating app. For publishing site content, it's the inverse: individual users are deciding their lexicons.
yeah, it definitely leads to all kinds of coordination problems :(. Just a thing people are going to (and I think have already?) done anyways, and seems like it's useful to have 1~ way to signal "this is markdown" instead of having everyone having to publish their own lexicon for it.