It’s not zero effort at all. For XML(which RSS is) with xlst it is serving only 2 static files. The XML file with a reference to the xlst file, and the xlst file.
The XML can be read without transformation by tools like RSS readers, but displayed with transformation into HTML for viewing in a browser with the xlst.
You’re saying it is easy to polyfill, but involving JavaScript at all completely breaks the (useful) paradigm
It’s not zero effort at all. For XML(which RSS is) with xlst it is serving only 2 static files. The XML file with a reference to the xlst file, and the xlst file.
The XML can be read without transformation by tools like RSS readers, but displayed with transformation into HTML for viewing in a browser with the xlst.
You’re saying it is easy to polyfill, but involving JavaScript at all completely breaks the (useful) paradigm