I would like to see news aggregators (and similar services, like search engines) enact policies explicitly banning such URLs, simply because it’s a terrible user experience.
https://github.com/iamadamdev/bypass-paywalls-firefox/blob/m...
Edit: reading the code is interesting on it's own, to see what each of the sites need to work (set user agent to Googlebot, referer to coming from facebook, etc.)
Thankfully, Mozilla's open model means anyone can still install it, their security model means the extension can only access a fixed list of sites it bypassess paywals on, and Mozilla's security UI communicates effectively when you click install on Github that this extension hasn't been reviewed but is limited in what it can do.
In that thread they talk not being able to install unsigned extensions in stock latest Firefox. That hasn't been the case for me. It might be because I'm on Linux, but I'm pretty sure that policy changed.
Overall, I have a lot of sympathy for Mozilla deciding not to spend their resources defending defeating paywalls.
It’s a shame, really, because it likely prevents a lot of good discussion that would take place if everyone could read the linked content.