[jscholes]

> I suspect most screenreaders would simply say "Eff Eff Ess".

Correct, thankfully. I don't really see a use case for screen reader-specific usage of the abr tag. If everybody else has to read "FFS", possibly having to look it up on Google to know what on earth it is, why wouldn't I also? Although I suspect that as a sighted user, you can mouse-over some text marked up with abr and see the expanded form.