I understand that they need to make money. However, something like this provides so much value to society that we as a society have a large interest in keeping

I understand that they need to make money. However, something like this provides so much value to society that we as a society have a large interest in keeping it as available to everyone as possible. Therefore I think that we need to have a publicly funded platform like this or one run by a non-profit like Wikimedia Foundation. The lower the barrier for everyone to take classes the better.