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.
Exactly. Every advantage I hear that Reddit has over Lemmy comes from the community, not the platform. Add or move those communities to Lemmy and I don’t think people will see much reason to use Reddit.