This topic was intended to address the general population of this forum, rather than the authors of the spec (listed on the front page of commonmark.org), some of whom no doubt have a lot of experience with writers of Markdown.
In particular, the block directives discussion stands out as a syntax designed by the minds of programmers. This is not intended to offend anyone who contributed to that discussion, but the impression I get is that we’re moving away from Markdown as a language that is appealing to writers. That’s a direction that I hope CommonMark can avoid.