Honestly all I really want is bold, italics, bulleted lists, and code blocks. If I can squeeze in quotes I'd take that too. Snort Astral Damus Probably more.

I guess the point is to keep the notes human readable? what about super long URLs linking to images? those often make the text content annoying to look at... I guess "all" clients agree to render those URLs as images...

Images could render automatically, astral.ninja does it.