I got a failure report for WebService-NFSN
(http://www.nntp.perl.org/group/perl.cpan.testers/2008/04/msg1282196.html)
because of ProhibitAccessOfPrivateData. As far as I can tell, it just
prohibits all use of hashrefs, whether or not they are blessed objects.
As far as I'm concerned, that makes the policy pretty much useless.
I've disabled the policy in the next release of WebService-NFSN.
This isn't listed in the module's BUGS AND LIMITATIONS.