Why is the little check mark box for keeping me signed in missing? Another site I belong to has the same set up as this, but I can stay logged in.. This is getting annoying.
The 'stay signed in' / 'remember me' feature is automatically enabled, so we don't bother displaying it. We avoid showing redundant user interface elements, as most users are on mobile where screen space is precious. It sounds like there is an issue with how your browser is storing cookies from the forum. You can try clearing your cache and cookies. Another member had this issue several months ago, I believe his problem eventually corrected itself.