If you take out coercion and theft, value 4 value it's what moves the world.

The only thing I would add is that, we cannot pretend to get something when we give out information. When information are shared it's already too late to get something back for it. The only thing you can look into are donations from people that value your work and want more from you.

If you think, when you are paying for a subscription plan you are paying to support the future work of an artist, you are not paying for the work he already have done. Morally and phisically it does not make sense to pay to get informations that have already been created and shared. But it does make sense to give money (time and energy) to someone that can give you back value in a way you cannot give it to yourself.