You can save the game. There is a save button in the main textbox UI. The commentor was asking to export saves.
It's not unfair for game developers to charge money for their games, regardless of what functionality they do or do not allow. Game development is a lot of work and requires the devs to hire artists and pay for assets they can't make themselves. Charging money for our game is way to recoup the costs we've spent to put our vision into the world.
I hope that explains why we have made the choices that we did.
Depression Deity