[catlifeonmars]

Not op, but markdown is much more likely to render well in different contexts, without post processing. My editor understands markdown, GitHub understands markdown, the link preview renderer in <random collaborative tool> understands markdown. It’s the lowest common denominator

[henrebotha]

That's true, and it's why we're all using it. But those different renderers all support different ill-defined interpretations of Markdown. You can forget about all of them accepting raw HTML.