This isn't about the whole privacy issue. Enough bits and bytes have been devoted to that topic.
Checked that the feed had actually generated entries yesterday and so it has. Is it accessible to robots? Yes, it is.
This is just one step worse than my previous situation where although FB had my RSS feed and could access it, it wouldn't go and do it on its own. Every time I created a new RSS entry, I'd have to manually get FB to go and import the new items. Now even that doesn't work. Crap.
And in case I didn't mention it: crap.