Years of Mark Zuckerberg's old Facebook posts have vanished. The company says it 'mistakenly deleted' them. Old Facebook posts by Mark Zuckerberg have disappeared — obscuring details about core moments in Facebook's history. On multiple occassions, years-old public posts made by the 34-year-old billionaire chief executive that were previously public and reported on by news outlets at the time have since vanished, Business Insider has found. That includes all of the posts he made during 2007 and 2008. Reached for comment, a Facebook spokesperson said the posts were "mistakenly deleted" due to "technical errors." I first saw this on 8chan.