A few thoughts: 1. When Ceglia first filed his claims, I called it a "lawsuit full of holes [that was] built up by sensationalist reporting into a supposed major threat to Facebook and to Mr. Zuckerberg" and concluded that, "in the courts, this thing is going nowhere." ( http://news.ycombinator.com/item?id=1537158 ) My sense of this had nothing to do with any fraudulent tampering with evidence as alleged now in the c…
Why was Zuckerberg going to Craigslist looking for work? Why did Zuckerberg want to do work for "known criminals"? The project Ceglia was trying to set up was an image database. Much like Facebook. I think if Paul Ceglia had a cleaner past and better judgment, he'd be collecting his (unearned?) share from Facebook in the same way that others, Winklevoss, etc., have collected.
The reason is the trail that Zuckerberg left behind him, screwing people over one after another, betraying their trust. The only person who could keep the damage under control is Zuckerberg. As others have said, other internet billionaires don't seem to have as many "forgotten co-founders" showing up for their "cut". The problem is particularly acute with Facebook. That's no coincidence.
The lesson here is you reap what you sow. Both Ceglia and Zuckerberg.