> I believe it is still the case that there is no element/attribute
> solution to the general profiling scenario that works in all cases
> that marked sections work. Am I wrong?
No, you are right. Marked sections are much more
powerful because they operate at a 'higher' level
than elements. You can have duplicate elements and ID
attributes, and marked sections can also cross element
boundaries, as long as the thing validates in the end.
Are you going to lobby to put marked sections back
in XML? 8^)