After editing the problem post to remove comments and pings, it seems to have disappeared completely from the site. Like deleted disappeared. Not existing. Gone.
I’m going to publish this post then go back and edit it to not allow comments or pings. We’ll see what happens.
Update: Ok, I removed comments and pings on this post and it stayed. Not a clue what happened to the other one. I’ll have to go rummaging around the database and see if it is still there at all. There isn’t a way to delete a post from the edit window. At least not that I can see, so it must be some sort of bug.
P.S. I’ve opened up comments and pings on this post again.