I think it's different for an established company like Matasano where 1) there isn't the financial risk to the paycheck that characterizes a new startup (pre-fu

I think it's different for an established company like Matasano where 1) there isn't the financial risk to the paycheck that characterizes a new startup (pre-funding) and 2) everyone around someone is working 60+ hours. The culture's already there. With a two- or three-person startup, the culture isn't all-encompassing. Each person makes the culture.