User blog comment:MisterWoodhouse/Unified Community Platform: The Vision, Purpose, and Process/@comment-45607798-20200518191825/@comment-24006128-20200518192223

The system we rebuilt Message Walls onto is not based on MediaWiki, so it does not have wikitext.

Building Message Wall on MediaWiki in the first place was an example of a core change which made updating the platform very difficult.

We've been looking at ways to incorporate more advanced messaging use cases into the new tech, but we're not promising wikitext support outside of wiki-specific features at this time.