The best solution I’ve seen so far is to put the question details in as a comment on the question. Then link to that comment in the source.

You can find the link to the comment by right clicking on the date or time shown below the name of the author of the comment.

You can see how it works with this question - which had a couple of images. Author wanted to know if the animal was a possum.

What is this animal? Is it a possum?

It obviously needed that photo (and another one).

I rewrote the title to say (see question source) and updated the question source to link to a comment into which I inserted the two photographs which I found from the log (by appending /log to the url)

What is this small grey animal with a pointed nose and arched legs which I spotted outside my home in Australia? Is it a possum? (see question source for photos)

Then at the end of the comment I added

“For the answers, see What is this animal? Is it a possum?”

That’s necessary for newbies who don’t know how quora works, go to the question source and then don’t know where to go next for the answers.

It’s a specially good very simple example of a situation where the question is a natural one that someone will want to ask: “What is this” with some photographs they took of it. All such questions will make no sense without the details. Well this is a way to fix past questions like that and to ask new ones.

Sadly it doesn’t embed the photographs into the question itself, but it’s better than nothing.