Talk is cheap. Money talks.

I ask for the deposit because the resources required to sustainably develop and operate an AI grader at scale are not free.

For me to continue with this project, I need demonstrated evidence of a willingness to pay even a nominal fee by a sufficiently large critical mass of people or organizations.

Should there not be sufficient demand, I'll refund anyone who put down a deposit within a year (less money transfer costs like payment processing fees).