Daniel Mayer wrote:
"Where any of the Crown copyright items on this
site are being republished or
copied to others, the source of the material must be identified and the
copyright status acknowledged."
In other words the Crown Copyright is viral.
That's not what people usually mean when they describe a licence as
viral. To be viral, it would have to require the material it is being
combined with to be licenced under the same terms.
I agree with your other points, though.
-M-