Does anybody know what the author means when he asserts that "nearly all writers he knows don't like writing"? Seems contradictory to everything I've heard abo

Does anybody know what the author means when he asserts that "nearly all writers he knows don't like writing"? Seems contradictory to everything I've heard about the iteration loop between practice, play, and discovery that characterizes mastery in any craft, be it programming, writing, music, sports, and so on.