I have an Index for my account, in my profile, and it only works in Amethyst. I assume nobody uses it, so it's mainly for me. If other clients refuse to support markdown, oh well. I've linked your list under the Index's "Nostr" page. Recently when I post I do a universal note first, and then edit and update the note to markdown, that way it works best on most clients. Amethyst honors edits, so the markdown works on Amethyst. The other clients see a sub-par post that works best for them.