I'm normally not a grammar nazi, but when you have this note:
Note: Article was liveblogged and after that was corrected by profesional English teacher hired on italki - Nikki and James
It makes me want to correct the word professional. It's not really good advertising for your profesional English teacher.
It is a good read and worthy of an upvote however.
RE: How I bankrupt my first startup by not understanding the definition of MVP - Minimum Viable Product