Are you also against specialized media types? Or, you would like
to make clear that specialized media types do not solve all problems?
It's not clear that specialized media types solve any problem at all,
in the case of XML that already contains a document declaration.
On the contrary, it is very clear that they do solve at least some set of
problems. There is no explanation for the large numbers of people happily
registering these things otherwise. We have ample experience to tell us that
people won't bother with this sort of administration unless they see some
possible advantage to doing it, and won't continue to do it unless those
advantages turn out to be real.
Ned