I think the solution has a more fundamental flaw. Reasons why people are no longer logged in: 1. The website timed them out. 2. They pressed “log out.” 3. Th

I think the solution has a more fundamental flaw. Reasons why people are no longer logged in: 1. The website timed them out. 2. They pressed “log out.” 3. They/their browser deleted their cookies. 4. They are on a different device. 5. They are in private/incognito mode in a new tab or window (say after clicking a link to confirm their email address at signup). To the extent the solution works at all it only works for (1) and (2).