Thanks. It makes all block level formatting aligned to 4 char indents. Hence, paddings. Hence the one letter limitation.
The terrible HTML comment hack is straight from the CommonMark spec... it solved a Markdown syntax issue... hope to kill it somehow.
Why are references limited to one symbol? It can just be more mnemonic to have `java_doc` than `j
Why only full reference links are allowed? It would be handy to have a shortcut for links without reference, and it's not like we're running out of symbols: `?[]` could be used for links without reference while being consistent with `![]`, which is used for transclusion
Why is it impossible to put backticks inside a code span?
What is there a `<!-- -->` in an example in the Lists section?
I really like the spirit of this markdown alternative