> I mean that the HTML back-end adds data that may not be useful for the
> RSS back-end.

Yes, things like the <div id=...> tags are not useful. But, technically,
they aren't wrong either. And, the alternative is to modify ox-rss so it
depends less on ox-html. That is a bigger modification, not within the
scope of this patch, I think.

> My remark about `org-export-data-with-backend' is orthogonal to the
> output of the function. It is usually better because it doesn't depend
> on the name of the translators in HTML back-end.

I have made this modification.

> Could you send an updated patch? Thank you.

Please find attached an updated patch.

Thank you.