I don't think the buddy who wrote the article is manic depressive... Definitely a long shot. He just seems like the stereotypical ADD teenager/college freshman who has no guidance. I feel like his experience is very similar to my early working years, especially when you are working on a project by yourself, with no one to benchmark yourself against.
That being said the article comes off as way too much of a "Look at all teh knowledges I have" humble brag, with not enough "I severely screwed over my friends (even if I was working for free) because after 2 years I still haven't delivered..." In the real world this situation results in unemployment not a self-congratulatory pat on the back.