Since he's a bachelor who lives alone, it wouldn't be 'logical' for these updates to be read by anyone other than himself. But the film's canny use of cinematic space actually draws us into a cosy complicity with him; there are several moments where he addresses the camera (and therefore us) directly. So the updates that he posts are simultaneously private and public, since his 'wall' can be seen by his 'friends' (here interpreted here as: anyone who has paid to watch his movie.) The distinction between private and public space thus collapses.
It's uncanny how not only his blurring of private/public space but his relationship updates are similar to what we now have with Facebook.
Maseh Bujang = Single
Dah Ada Kawan = In a Relationship
Burong Dah Terbang = It's Complicated
In this respect, P. Ramlee showed himself to be a nujum (seer) like the one he played in Nujum Pak Belalang six years earlier.