Have you tried using latest Facebook version on Opera? Facebook updated my account to new status and privacy updates with location for status sharing, but unfortunately it’s not working for me on Opera.
I am using Opera 11.51 build 1087 on Mac OS X 10.6.8.
I am not sure if it’s issues related to my install or is it general error on opera that facebook status update button is not working on Opera.
Update: upon exiting and restarting Opera allowed me to post my status update (in the image above saying “Opera isn’t allowing me to post status update”)