I think there are some interesting parallels with J K Rowling. If he releases anything now, it's big news (even Cliffhorse). He might have to start "writing" under a pseudonym just to get any sense of doing something fresh without intense public scrutiny.
There are a lot of parallels with people who got immensely rich while doing what they loved with no specific monetary goal in mind.
I think Notch represents quite well what a lot of us would be like if one of our software got incredibly popular overnight (We're talking worldwide sensation) and we got a massive amount of money out of it (Billions with a B).
Confused, dazed, surprised. "That's quite cool but I never actually meant for that to happen". Try to do good things with the money but end up with responsibilities we don't want regarding the product, the money and ourselves. Not be able to have a private life all of a sudden and wanting out of the drag.
I think it's pretty well known that JK Rowling is a woman. Also, she has recently written some books under the pen name "Robert Galbraith".
Edit: I see above that the poster was referring to Notch. Just a simple case of an unclear antecedent (and being unfamiliar with Notch's and Rowling's recently releases ;) )
Interesting note, if an author uses a pseudonym of a different gender, its appropriate to use that gender of the pseudonym. I find it weird that James Tiptree, Jr. is still a "he" when we've known for decades it was Alice Bradley Sheldon's pen name.
In fact, Tiptree, not Sheldon, has been inducted into the science fiction hall of fame, which is even weirder.
I don't think I've ever met anyone - in real life or in the UK educational system, anyway - who referred to George Eliot as being a "he" without instantly being corrected.
Nah, he's been releasing little side-projects every so often, none of which were seen as the next big thing. Although that space game of his did get a lot of hype, he decided to pull the plug on that one a while ago because it just wasn't going to work (also due to all the pressure from the fans).
0x10c (that space game) would have been incredible if he had completed it. It would be the next step up from Minecraft for kids who liked Minecraft. Can you imagine?
Maybe that's really why he stopped the development.
Are you saying Notch waited for this big news story to break so that he could quietly announce a gender change without anyone paying too much attention? He should become a politician.