As quoted from the linked post.
It looks like you’re part of one of our experiments. The logged-in mobile web experience is currently unavailable for a portion of users. To access the site you can log on via desktop, the mobile apps, or wait for the experiment to conclude.
This is separate from the API issue. This will actually BLOCK you from even viewing reddit on your phone without using the official app.
Archive.org link in case the post is removed.
It’s true that it will hurt people long term but it will drive traffic away more than deleting the inane stuff. No website like that should be such a central repo when it’s unstable like this. The internet has survived link rot and info loss before.