Yet, isn't all markdown more or less "malformed", as long as there is no real standard for the syntax? It can lead to weird and hilarious problems further down the road when a new or different Markdown translator is used somewhere else. :-)
By "malformed" I mean "not syntactically valid". And how could you be syntactically valid if there is no official syntax specification? Now let's assume there is such a thing as "Official Specification of Markdown -syntax". That would be great. But we know that there are many different markdown variants, so the markdown I write is most likely syntactically invalid, or "more or less malformed" according to at least some of the variants. More or less.
The only difference among different markdown interpreters is that some support more features than others. **something** is going to be bold on all of them.