Talking about overcoming "impostor syndrome" is a great way to humble-brag, because it makes the assumption that the person is already competent enough to feel

Talking about overcoming "impostor syndrome" is a great way to humble-brag, because it makes the assumption that the person is already competent enough to feel inadequate. If you ask software developers to assess themselves, most will think they are above average. This leads to an echo chamber where only "competent" people reply, and the way that the question is phrased suggests this as well.