[confluence_perf]

Thanks! I'm not sure this is the most doable thing (I'm not familiar with the technical aspects of the editor storage format) but can definitely discuss with that team.

The "reasonable subset of Markdown" is also a very useful specific detail, exactly the kind of specificity that helps us do our jobs.

[Kinrany]

There's CommonMark, a standard for Markdown. You could make that your goal, instead of feature parity with any of the proprietary implementations like Github.

[TeMPOraL]

FWIW, check out the new Reddit interface. For all the well-deserved hate it's getting (some of which for the same reasons Jira is), it showcases that you can have a dual WYSIWYG/Markdown editor that works, and allows switching back and forth between modes during editing.