I really don't think anyone just from reading the article(s) about the situation has enough information to know for sure.
Unless its proven that the mails are real, FB shouldn't be harassed over it. If they don't have the forensic to prove it real or otherwise, shouldn't FB be getting the benefit of doubt since the guy is a convicted felon, remain silent for years, suspiciously came up with new mails months after initial lawsuit, seems excited about FB(the site he is talking about) and then goes dormant for 7 years...
I'm taking no stance until actual evidence comes forward or this goes to court and the emails in question can be examined and verified, if possible.
Just because someone is a convicted felon doesn't mean they're not entitled to the same access to the judicial system as everyone else.