I'd say that it's central to the topic as it illustrates the problem perfectly. Marketing is a dialogue between the producer and the user/prospective user. If

I'd say that it's central to the topic as it illustrates the problem perfectly. Marketing is a dialogue between the producer and the user/prospective user. If the first response to someone trying to be helpful is "No." then that dialogue has been essentially shut down immediately and neither side is going to learn anything. No one who wants to understand the other side's needs is going to respond that way. So they're showing that they have no interest in marketing what they're working on.