Many sites do intentionally, even - it's quite popular in University settings and in
the financial sector. Nothing really drives that home like breaking support for it (which
I'd like to say I've never done, but can't). Putting it anywhere other than
/afs would be crazy - especially when /afs predates the FHS, and the FHS is violaged
plenty of other places (usrmerge, anyone?).
Thanks,
--Robbie