Some Reddit users have noticed that they can’t sign-in to their accounts anymore on mobile, as the option to do so has been removed for them. Reddit has made it difficult in the past for users to access the site on mobile in browsers. The company’s main intention is to get users to use the official Reddit application instead.
I saw this two weeks ago. I had a few days where I thought I was going crazy because there was no “log in” link in the header, just a more obnoxious “open the app” button instead. After a few days I did see the log in button again, but I had already accepted the fact that I’d only be allowed to use their mobile app and convinced myself I’d close my account (which I subsequently did two weeks later)