" (...) exposure is not a measurable resource. If someone asks you to write for exposure, ask them how much exposure. Like, have them measure it. "Will it be ten picameters of exposure? I usually ask at least seven nanoliters' worth." If they can prove it, fuck yeah, great. But exposure is a hard thing to prove. Let me utter my refrain yet again: Writers, like hikers, can die from exposure. "

― Chuck Wendig , 500 Ways to Write Harder