I am trying to determine when a user joined facebook. So far what I have come up with is scanning the users profile pictures for the first one ( i seem to remember that in the early days, facebook forced you to upload a profile picture ) and take the timestamp from there. I thought of doing the same thing with wall posts too...
Does anyone have any ideas on how to get the most accurate information about when a user created his/her account?
There is no way to get this field, but what many applications do to approximate this is take the oldest photo in the 'Profile Pictures' album - which for me is within a week of my actual signup date