I see someone with more than 10 accounts trying to increase activity + post in this bounty topic: https://bitcointalk.org/index.php?topic=4728973.0
He commented the facebook account does not exist, the general characteristics of the Facebook account is the last four digits of the birth year.
When checking Date Registered these accounts are the same date.

Here is link some post of him in page 43, there are too many I can not list all:
https://bitcointalk.org/index.php?topic=4728973.msg43732897#msg43732897
https://bitcointalk.org/index.php?topic=4728973.msg43733133#msg43733133
https://bitcointalk.org/index.php?topic=4728973.msg43733183#msg43733183
https://bitcointalk.org/index.php?topic=4728973.msg43733236#msg43733236
https://bitcointalk.org/index.php?topic=4728973.msg43733309#msg43733309
https://bitcointalk.org/index.php?topic=4728973.msg43733426#msg43733426
https://bitcointalk.org/index.php?topic=4728973.msg43733589#msg43733589
https://bitcointalk.org/index.php?topic=4728973.msg43733661#msg43733661
https://bitcointalk.org/index.php?topic=4728973.msg43733699#msg43733699
https://bitcointalk.org/index.php?topic=4728973.msg43733732#msg43733732
.....
I think every page in that topic has his post.