> So if it isn't with money or advertising, it has to be whatever else they can extract from the users. So let's imagine someone serves supper on the street (i

> So if it isn't with money or advertising, it has to be whatever else they can extract from the users. So let's imagine someone serves supper on the street (i.e. street food), with the setup that it's take it yourself service. The incentive is that people would line up and pay, but some people don't - so would such company owners have the right to collect saliva and extract DNA to sell such personal information to some other companies thereby extracting value?