By her own admission Ms Cornish is not a musician and cannot therefore comprehend the motivation of musicians. Furthermore, different musicians have diffent motivations which makes the situation even more complicated. I can understand someone asking the question posed in the original post but I cannot understand her peculiarly aggressive response to those musicians whose honest and thoughtful responses do not meet with her approval.
Sometimes I play for money, sometimes I play for free. I do not play if I don't want to, regardless of payment.
Why does anyone else think they have the right to question my reasons for choosing to do what I want to do?