More generally, not knowing how a company makes money should be a huge problem for someone candidating. Given the choice, a company with a sane business model

More generally, not knowing how a company makes money should be a huge problem for someone candidating. Given the choice, a company with a sane business model has less chances to go under (== not going through interviews again in 6 months), and it should also give an idea of how much and in which way the comapny has any chance to grow.