- form/input server-side validation (you would specify a URL as an attribute of the input / form to which what-if data would be posted)
- input auto-complete (same thing, URL in attribute of the input)
- adaptive design (they should rethink CSS with various formats in mind)
With these 3 things alone I think you can pretty much create a fully working JS-free website. You would only need JS if you really need to build a SPA (which should be the exception: online trading platforms, etc).
The fact that now even a blog article is not viewable without JS is a joke.
...and eventually you'd have some chap like the OP here who will come up with a clever way to exfiltrate information somehow anyway.
[1]: https://www.torproject.org/docs/faq.html.en#TBBJavaScriptEna...