I agree that there are no simple answers and the guys over at 37s do tend to come across as if they claim there are. That can be attributed either to brevity (or as some people say, rushed) or to them having a more idealistic and less realistic view of the world.

My point is that without completely agreeing with it, the post still has value.

Spending money you haven't earned yet (either through an investor, a bank loan, etc.) can be a very good way to accelerate growth, and sometimes the only way to allow any kind of growth or even continuity. But I do think there is some truth to the cost of debt in having to deal with your creditors one way or another.