I remember reading that post when he wrote it. From the post:

That's why, even though I don't financially need to work, I choose to work (and end up staying up until 4am pushing new code). It's why we created FriendFeed, to have a great place to work, a place where we can build great products and have happy users. Of course I'd also like to earn a few billion dollars, and I plan to make all of our employees very wealthy, but that's more like a bonus.

Rather than undermining it, I think this underscores my point. It's precisely because there's more to life than money that I'm surprised he was willing to sell. I would have expected only a ~$1 billion price tag to tempt him.