I agree with this. The core you're building is around a deliberate minimalist philosophy. I was happy to build an opinionated client for my own use-case, but it should imo stay on the fringes for those seeking it.
I've tested MD and honestly I don't like it. Bold/italics add unnecessary noise/clutter and the font is already monospace, suited for code, so inline code & code fences are not needed. If 3rd party clients want to implement them it's fine but I'm sensitive to visual noise.