Or maybe I've posted twice total on HN in the past and have never bothered to remember the username/password?
Maybe you should also go after Google+. They are also copying many of features you claim as your own. Larry and Sergey surely owe you just as much attribution.
I've followed a lot of your posts on HN and Quora and created an account just to ask this question: Why do you think you deserve any credit whatsoever for Facebook's success?
Social networking isn't a unique idea. Yes, Mark Zuckerberg and you both created social networks. Yes, he may have borrowed some ideas from your creation. But the most significant innovations which have driven Facebook's success - newsfeed, platform, open graph, likes - came well afterwards. By your own words though you were ready to sell HouseSYSTEM to Harvard. It's unlikely you would have had the vision to make Facebook what it is today.
I know the movie is dramatized but this quote resonated with me: "Look, a guy who builds a nice chair doesn't owe money to everyone who ever has built a chair, okay? They came to me with an idea, I had a better one."
Maybe you should also go after Google+. They are also copying many of features you claim as your own. Larry and Sergey surely owe you just as much attribution.