@dillo If we drop scripting (including css) and the expectation of the same rendering in all user agents (from what people expect user agents to do), it may make writing new user agents easy enough to have an appreciable effect, even without simplifying the HTML grammar a lot. And new user agents should support old websites written in non-XML HTML—reimplementations of Web-like things exist (for example gemini), but after all, I want a fork, not something new.
Does something exist or can we establish something like an open “small user agents group” or whatever where we can start by collectively writing on a website “Let it be known: User agents are henceforth not expected to implement CSS or JavaScript”?