Indeed, the body in the post made me think it was a url-less submission.

Ah yah. Somehow in the last 6 months or so we started using the toptext in new ways - e.g. to share related links and whatnot.

I know it's ambiguous (is this a text post or a linked post? did the submitter write the text or was it the mods?) - but my thought is that over time it might naturally evolve into something clearer.