we have literal "starving authors" - they pretty much all need second jobs to survive.

for the authors themselves I don't see much difference between having no copyright at all and being thrown a few pennies on their work from amazon. either way the ability to make a living from those pennies clearly isnt motivating them.

the future jk rowlings of the world will still buy lottery tickets to fame and fortune whether or not she ends up being worth $20 million (weak/no copyright) or $1 billion (strong copyright).