If you see anyone’s Facebook timeline , you can see year wise posts are returned on the right side of his timeline.what if he has complete privacy setting to his timeline? still the year queries are returned even if there are no posts.
now you can easily guess that 2013 is the year when he joined the Facebook!
How to confirm this?
Consider one more person who has complete privacy to his profile whose timeline shows years later than first person
Now after fixing my This issue, the friendship page returns year wise query of the person who joined earlier than other(if they have applied friend-list privacy).
i.e year wise query will be
so this confirms the first person’s Facebook year of joining as both his timeline year query and friendship year query is same!
i reported this to Facebook but they didn’t find it severe enough to qualify for bounty.