My pet theory on this is developers never test it and QA rarely do either. Both groups are logging in/out constantly and if that checkbox doesn't work it's easy

My pet theory on this is developers never test it and QA rarely do either. Both groups are logging in/out constantly and if that checkbox doesn't work it's easy to fob off as "maybe I didn't check it?" or "my account switching broke it but that's a special case". Every time I have to login again to a website that I told to remember me or "trust this computer" I get frustrated and then immediately think "Ehh, I understand how this happens". In a time when a password manager is nearly a requirement it's not the end of the world but it still bugs me since I really don't think most of my sessions have any need to expire unless I explicitly log out (or void all my remote sessions).