Users raise concerns as Facebook discreetly censors a few posts

Several users' posts concealed behind an obscure message saying 'attachment unavailable'

On a January morning, Ishan Bhamri woke up to his Facebook newsfeed populated with veiled posts from his friends. Veiled, because these posts carried an obscure message: 'Attachment Unavailable'; in place of what might have been a status update, image or something shared from another Facebook page. 

Bhamri, a New Delhi-based user, wondered whether he was the only one who couldn’t see the posts.

He later wrote on Facebook: “Have you noticed something weird going on FB today? A lot of the stuff people are sharing is coming as 'attachment unavailable' on my feed and I can't see it. So