Now I know what I don't understand. What kind of expenses can a DAC have? Can someone give me an example?
I think there are two kinds of costs invloved.
- There are meta-costs to people buing/renting equipment for its operation
- There are direct costs needed for the service of the DACS customers.
I do not have a quick example right now.
If I wanted to make a 'free' message sending service where the users must do complex calculations (mine) to send messages, it wouldn't be free because the calculation costs money.
So let's say there is a messaging service that has a fee, and someone makes a copy with zero fee, it wouldn't become popular, because the people who want to send messages don't want to tackle with getting the mining equipment, they would rather pay for it.
I think I am starting to understand it now.