Merged and published as 4.0.1. 👍
Regarding the future, it would be really nice to have a way to specify metadata about the post. For example, here's how you'd do a "post" with ActivityStreams:
{
"@context": "https://www.w3.org/ns/activitystreams",
"summary": "A simple note",
"type": "Note",
"mediaType": "text/markdown",
"content": "## A simple note\nA simple markdown `note`"
}
This is actually a pretty neat spec, it seems like they've put a lot of effort into specifying exactly how all of this should work together: https://www.w3.org/ns/activitystreams#class-definitions