On 16 Jan 2006, at 3:09 am, James Holderness wrote:
The one time I'd think it might be safe is with XHTML (as I mentioned in a previous message) since Atom processors are already required to handle XHTML fragments in the content element. Anything else would be highly risky unless it was a proprietary feed communicating between two known applications.
Except no one bothered to tell the aggregator writers they'd have to implement this, so no it's not safe.
Graham