This is an extension of a discussion from a while back. "Discussion examples" converted into tiddlers?
In there they talked about converting “Discussion example” tiddlers commonly used in discussions here to real tiddlers. In that thread, they come to the conclusion that it would be best to have TiddlyWiki parse imports in that format to real tiddlers.
I want to purpose a different solution, that I would be interested in making if it has enough support. I think it would be interesting to create a Discourse Plugin that created a new markdown block similar to the code block. In it, you can fill out a tiddler, with text, title, and fields. Like the code block, it would also have a copy button in the corner, that allows you both to drag it or Copy and Paste it into a TiddlyWiki.
I want to talk about the merits of the idea, see how much support it has (even if I made it, but people didn’t care, it would never actually get added) and also talk about what the syntax would be.