> bloat of '00s enterprise XML

True, and it's even more sad that XML was originally just intended as a simplified subset of SGML (HTML's meta syntax with tag inference and other shortforms) for delivery of markup on the web and to evolve markup vocabularies and capabilities of browsers (of which only SVG and MathML made it). But when the web hype took over, W3C (MS) came up with SOAP, WS-this and WS-that, and a number of programming languages based on XML including XSLT (don't tell HNers it was originally Scheme but absolutely had to be XML just like JavaScript had to be named after Java; such was the madness).