Well they meant that I was conflating two things, and I was, because you can reference stylesheets to transform XML from one form to another, you can use it to render XML into HTML (or anything within limits), and that was the part that I was referring to specifically. That process can happen in a browser, on the command line, inside of Java dependency injection, build systems... It's in a lot of things because for what it is and what it can do it is pretty broadly applicable. It just isn't sexy front end or clear isolated backend so maybe that's the confusion here. I'm talking IBM, Oracle software acquired over decades from smaller companies that tried it all. And taking it out of a browser engine breaks these systems as well. A browser is used for testing, literal hack glue using tools like Selenium for systems integration, end users interacting with the system or administrators interacting with them... And again, some systems use browsers programmatically... XSLT is huge in mid 2000s report generation. The more I think about it, it does feel like a mini Y2K to touch the HTML rendering pipeline in this way. I think it could have subtle and hard to find consequences, and it doesn't feel extreme, maybe making a whole thread does about it though lol