Using `-> Title.[1]` for Links looks neat at first. But I often tend to copy links from one Markdown to another. I don't think updating the footnote numbers of *both* Shrimple documents is easier in any way.
I argee. Up until now, the most PITA for me in Markdown is the table syntax. Even CommonMark does not have any spec for table except for long running discussions with lots of proposals.
AsciiDoc(tor) has a nice support for tables. It also supports more complex features like merged cells, span cols and all but the syntax suffers from there. I guess that is also why AsciiDoc was not widely adopted.