I'll take a shot. In his post there is not one word about revenue, cashflow, plan for monetization , etc. It's the typical "Let's get more users" gauge of success.

Businesses make money.

Just look at exactly what he is saying. He is talking about his lack of user traction as a reason for why his startup fail. i.e. "my startup failed because i don't have enough users".

Businesses fail for one reason and one reason only. They spend more money than they make.

How is this a business?