Extension doesn't work with 1.16.0
Here's the post from the previous discussion copied over -
Reproduce buggy behavior Log into the wiki and leave the browser open and wait for your session to expire. (I've read this may be influenced by session.gc_maxlifetime and session.cache_expire in php.ini, but this doesn't seem to be the case for me.) After it expires, you should be able to edit the pages without being logged in.
Update: Here's a much quicker way to make your php session end, and to be able to see the bug. Find where your php sessions are being stored (this is session.save_path in phpinfo(), default /var/lib/php5/ on Ubuntu). Grep the files for your logged in username. Delete the session file for your session. Apache/PHP will recreate it as soon as you navigate to another page on your wiki - however, you should now be logged out AND able to edit pages without logging in. I'm beginning to wonder if this is more of a Mediawiki bug than a bug with this extension