Stories with flags turned off should display a banner. These moderation decisions deserve transparency.

I agree, so long as the people who flagged a given submission or post should also be displayed, for the same reason of transparency. Also the items a user flags should be included in their profile, for the same reason of transparency.

In the interest of full disclosure and the same transparency, I say this as someone who has had such a flag-bombed submission saved, an NPR report about one of the first systemic uses of gun-armed, AI-powered flying drones to mass-shoot people (not to mention that location targeting for the shootings is largely AI-driven as well). I struggle to think of a good reason to flag that as off-topic for Hacker News:

https://news.ycombinator.com/item?id=42199969