The context is actually much worse than the "dumb fucks". He was actively offering to share the information of his users with his friend - "selling" it as it we

The context is actually much worse than the "dumb fucks". He was actively offering to share the information of his users with his friend - "selling" it as it were for mere social kudos. It shows that even at that early stage, he perceived Facebook as a vehicle for collecting and exploiting the personal info of his users, exploiting even before he had a clear idea of how. 20 is old enough to know better than that.