The notion of hiding bad results indicates a seriously broken culture. There is no such thing as a "bad result" because it's a positive learning opportunity. If you haven't released in a few days, however, that's a metric management will observe (and pay attention to). There are no reports involved—nothing to hide, however. Teams don't "hide" anything. They just don't waste time creating reports that contain nothing actionable by management. (Actionable by the team ≠actionable by management.)

Source: x.com/allenholub/status/1829930742014755295