I logged into sajha after a long time, and it was good to see you writing again ff...

However, on the facebook status thing, do you really think people update their statuses just to seek attention? How about a post in sajha then? Wouldn't that be seeking attention? Where do we draw the line? At least status updates is targetted at friends. Here in sajha, a blogger is basically saying, OK World!!Listen to what i have to say.
I am sure, your intention is not to seek attention from sajha users but to express your thoughts, or even feelings(if i may). And, I think, facebook users you described above probably don't think about such things too when they update their status or profile pictures. I don't think its a good idea to simply analyze people's mind based on what we think. People may think differently, probably less cynical.
Just my thought...

About ambiguity of the statuses, many a times, people post statuses targetting a specific group of their friends to whom the status is not as ambiguous, may be even an inside joke. Unfortunately, facebook doesn't have a way ( at least to my knowledge ) to only have certain group of people view certain statuses.

I, too, am not keen in seeing status updates of all the people in my facebook. Facebook, therefore, has a hide button. One click of it, and you will forever, be free of the status updates :)

It was good to see you come back and write again though. Keep writing.