The nice thing is that with LLMs using markdown we are getting a nice ecosystem for a universal method for communicating textual information. The negative is that Markdown is starting to look like the https://xkcd.com/927/ cartoon.

The silly part is having n+1 Markdown standards that all end up rendering as HTML anyway. Personally if it's a plain text file sure, basic Markdown is fine, beyond that just give me some kind of rich text editor that stores as HTML and let me do whatever and not have to hand format a Markdown table.