I hate it.

But if you insist on having it, don't try to be cute and auto format my markdown inline with the editor, it doesn't work and you just have a user forever fighting the editor. Slack never figured it out and forever pissed off developers, I don't think you'll figure it out either tbh. Let it be a setting option or something but absolutely don't try to combine the two by converting the users markdown to your way of doing it.