It wouldn't have been a business to begin with if he didn't sell it. At the time, it was just a blog driving a modest amount of ad revenue. Partnering with bigger outfits allowed him to hire staff and cover more ground, something that he could never do without outside investment. He has since returned to blogging, which to my understanding drives enough revenue for himself and exactly one assistant.

I replied to your comment, and now you've replied to two other threads I've commented in reiterating that Nate is a sore loser who deserves what he got and he should have expected this. To be honest, it sounds like you have some kind of personal grievance with him. His post doesn't come off like he wasn't expecting this outcome, or that it's devastating him. He mentions that he is significantly happier now having gone back to blogging than he was at Disney. It's just a blog post, about a big era of his life, which is now over with. He's human. He can feel disappointed that 15 years of his work was taken offline, and reminisce about the ways things went wrong, both on his and his employer's end.