I can't find the sign out link.
I am on a PC. I tried going to the tile up on the right hand corner that is between the search magnifier and the 3 horizontal bars. The tile is of a little person. When I click on it, it says "Log in and join us", as if I am already signed out.
However, I know I am not signed out because I can post, it has my name in the middle and I can read my private messages, see my subscribed threads, participated threads, etc.