I don't think it is selfish at all. You put in the work to learn something and you are giving it away for free. People who are earnestly searching for informati

I don't think it is selfish at all. You put in the work to learn something and you are giving it away for free. People who are earnestly searching for information will find it one way or another. I'd consider selfish to be learning something and keeping it all to oneself.