The first time I was looking at Moore's blog the $50M figure was written there (see my first post on this), in the following hours he must have changed it to $30M, which gives a weired picture of this man.
You can't claim $50Millions and then change it to $30Millions some hours later. If you are acting professional you should check the numbers FIRST and then publish it.
Thus I believe this blog is from the true Moore, because I'd expect behaviour like this from people like him who are mainly involved in scientific explorations/inventions, but not experienced in business life and its practices.
GLTA