"I still don't know if Facebook has a successful plan for monetizing its use by non-doofuses who refuse to read ads or play time-wasting games." Why do they nee

"I still don't know if Facebook has a successful plan for monetizing its use by non-doofuses who refuse to read ads or play time-wasting games." Why do they need that, when there are millions of "doofuses" to profit off of?