Sure, we could assign price tags to every human interaction and never stop. But isn't it better for everyone to build a collective wiki of knowledge that we can all share and rely on? If I spend an entire day digging through the webpack documentation to perform a certain task, I'll gladly share that knowledge freely with anyone who asks, because I think it's a complete waste of human existence for each of us individually to learn how to wrangle webpack into submission.

The question becomes: If I've already put in the work, what cost is there to me to make my knowledge freely available in the form of a SO answer? Usually the answer is "not much".

(I'll be sending you an invoice for this comment)