[onion2k]

Until users decide that the businesses interests of the companies that run the websites they use are less important than their own interests these features will never catch on. How about we stop using websites that fail to implement things that are good for us?

In fact, someone could write a browser plugin to put a screen between the user and the website that states "This website fails to implement .well-known link. Are you sure you want to continue?" like Chrome does for sites that have borked DNS. If a reasonably large number of people used that you'd see lots of sites implement this idea without needing regulations. I'd use that.

[brokenmachine]

But then how would users get to Facebook? /s

You could have that plugin have a database of sites and also provide easy links for those sites that try to hide those functions.