With some exceptions, most appear to be developers selling developer stuff to other developers. It's like a microeconomy based around people trying to make a li

With some exceptions, most appear to be developers selling developer stuff to other developers. It's like a microeconomy based around people trying to make a living by taking in each others' laundry. If I'd hazard a guess, it's because they have the technical chops to build things, but lack the experience/connections to build things people outside of tech actually need.