I think you may have misinterpreted the parent comment. "Complement" as in a complementary good in economics terms. Not "complimentary", as in free. There's a g

I think you may have misinterpreted the parent comment. "Complement" as in a complementary good in economics terms. Not "complimentary", as in free. There's a good article on this by Joel Spolsky https://www.joelonsoftware.com/2002/06/12/strategy-letter-v/ https://www.joelonsoftware.com/2002/06/12/strategy-letter-v/