I see nothing about the design that is broken. Most websites have implemented "remember this device" functionality in a way that 99% of users understand fine how to use. Some people have specifically implemented an option that says "Completely erase any potential for sites to remember this device", and then start bitching about poor design??

Queen, please. I have no objection for people choosing the "forget my device" option, but the nonsensical whining about explicitly choosing this option and then bemoaning that a website doesn't remember you is absurd.