Fragment identifiers should be id attributes, which can go on any element and are unique within the document, instead of name attributesm, which need not be unique and only belong on certain elements.
Comment on Re^2: Dynamically cleaning up HTML fragments
Of course I have. However this is completely irrelevant to the question. The HTML fragments that I have in mind have no need of either "name" or "id" attributes. Of course someone else with the same general question but different specifics may require them which is why configurability is one of the criteria.