Probably not, most, if not all, non-compliant XML/XHTML is either written by hand or by very bad generation tools. In the case of HTML/2 it's a protocol that ne

Probably not, most, if not all, non-compliant XML/XHTML is either written by hand or by very bad generation tools. In the case of HTML/2 it's a protocol that needs to be implemented by browsers and web servers and there are only so many of those. In the case of XML/XHTML any person throwing up a website or sending a document does the generation with a different set of tools(or by hand)