Hi Andy,
You could have thought it was unintentional.
I needed to make a post and it was important it had 4 images. Thing is when I tried to do it there was an error message and I assumed the post was not made cause there ware no GUI or UX message explaining me the behavior. Naturally, as a web user we expect a message indicating that post was made. Here there was none.
So this led me, the user, to go back and try again.
It was thanks to Mndz that I learned that this functionality has a bug, and that you first need to upload images only. Save the post. Then come back and edit it and add all the text you need.
It was an unintentional situation that occured.
Regards.
Ps: It could be useful to add a message on the documentation that in order to upload images. You need to do it first without text, and then edit your post.