You click your username at the top right and at the bottom of the drop down is log out.Smogon no longer has a Log Out option... so
It's not 'actually' a mobile site. It's essentially just reformatted to fit a small screen. If you take your browser and minimize it to the size of your phone, you'll see the same thing. But it's still better than having to rely on clicking tiny sub-forum links.It would be nice if there was at least an option to go to the full site. Not being able to see the last poster in a thread is irksome to me.