Current state of things is a mixed bag, in my opinion. XSLT wasn't perfect, and XML required a lot of repetition and neither got the amount of scrutiny both deserved to advance past their own inconvenience. But a lot of what we have today has just as many drawbacks, and that _despite_ WHATWG and Google hawking over it all. XML had namespaces, which alone were quite a potent feature that allowed to manage _semantics_ of data with more rigor and flexibility -- compared to the in my opinion amateur-ish "custom elements" HTML 5 approach, and how Apple refuses to implement parts of the spec., because they "don't believe in inheritance" (I am being liberal but those who know know). Then there is the HTML 5 parser itself -- "for the masses" -- with its idiotic and incomprehensible rules that are element specific, for which reason noone ever remembers these. Forgot a `</p>`? No problem, you can discover your omission after you've shipped! HTML 5 parser never aborts!