One can often bypass paywalls, nag walls, etc with Safari Reader, bypass paywalls clean extension for Firefox and Chrome (Opera uses the chrome engine) or disabling JavaScript for selected sites. I use Sheriff on iOS to do this. Other extensions will do this, I am sure.
---
Twitter links are often posted here, and without an account there, you can only see tho OP.
Discussion of workarounds here:
https://news.ycombinator.com/item?id=39151768
There is concern that nitter.net may flake.
Not a filter, but this one "bypass" paywalled links https://github.com/MostlyEmre/hn-anti-paywall