In the spec it is mentioned that a blockquote doesn’t require a whitespace between the blockquote character
> and the content of the blockquote (example 193).
Firstly, it makes a small inconsistency with Heading ATX that require a space (example 33).
Secondly, we come across a collision with textual smileys. For example, the smiley
>_< are not parsed like a smiley but like a blockquote with the current commonMark spec.
So, the question is, this will be harmonized ?