Reddit doesn't have login walls yet but it has way too much information stored within their walls to not have a backup / non-social-media way of extracting it. It's infeasible to have Reddit blocked because it's UI is intended to be addictive like all social media but also be able to extract information from it.
For the moment.
It's not like 95% of the content is any good anyway. You have to dig deep into a niche to really get any value, and the last few years, less and less. Of course, I haven't logged in for 3-4 years so maybe I'm missing something. Doubt it.
Plus mobile sometimes refuses to show some things.
old.reddit still works though.
There isn't one on the root directory, but Reddit has plenty of login walls.