I notice there is a secure connection when I login to stackExchange, but it goes away after I login to askubuntu.com. Why isn't askubuntu also running with encryption?
At a guess it may be something to do with the login page's link (even from HTTPS askubuntu) is
wherease if you change it to
It should go back to the HTTPS page. This probably could be implemented in the HTTPS version of site. dunno.
(Checked in clean session of Firefox, though it somehow logged me out of another one)