Consider the possibility that the link is actually spam, and not really a lifestyle the OP has espoused. Consider also the wackiness level of dedicating one's whole life to one game idea.
What I'm saying is, let's maintain a healthy skeptical frame of mind as regards this topic, and wait to see when the OP comes back and what else he has to say.
That is pretty offensive. In a sense I am dedicating at least the next decade, if not my whole life to one game idea. I used to post here and mmorpg.com quite a lot about an MMO design.
Currently I am creating a series of 7 RTS games that are genre hybrids include significant aspects of other genres in order to get close to the way said mechanics would work in my mmorpg idea. Each game explores a different part of my MMO idea. I am currently on the first one which explores the more general idea of the game and its design philosophy. Others explore crafting, magic, construction and so forth.
As to how that relates to your post, I know myself to be a person who is intensely focused on essentially a single game design/idea. So I think its pretty insensitive to call this person's post wacky. Its possible that he will end up not creating that game, but its also perfectly possible that he would spend many years on it and finish it.
Spiro goes even further in calling another person's life choice idiotic. Being so rude is not necessary.
This person's post was clearly a good choice because he learned important things like that he should probably pursue a more general CS degree and live a bit healthier. And this was all done without asserting that he was wacky, and its clearly meant to be read as stupid in this context, or the more blatant idiotic from spiro.