Why Boot .dev is not free
https://blog.boot.dev/education/why-boot-dev-is-not-free/
I think IndieHackers will understand where I'm coming from, at least that's the hope! Most of my customers understand as well, at least once they get to know me and the business.
I used to have similar views however i have changed my mind. Now my opinion is you should charge some amount otherwise it will not be valued by the user.