The purpose of an elevator pitch is to describe a situation or solution so compelling that the person you're with wants to hear more even after the elevator ride is over.
Seth GodinI was amplifying the negative at the expense of the positive, not to serve any useful function, not to make my writing better, but to destroy it. The lizard brain, so attuned to people laughing behind our backs, was on high alert for this sort of criticism and would do anything it could to stop me from writing again. I haven't sought out and read a review or a tweet since.
Seth Godin