PhabricatorHomeMainController is synchronous, DashboardPanel is asynchronous. This makes changing any behavior fairly difficult. We don't like to hide things, either. So ... we're at make the fallback smaller, which may or may not be something everyone agrees is correct.

Is this request specifically about just Unbreak Now?

The "Unbreak Now!" case is the only one I consider important. Similar behavior might be nice for "Needs Triage" + viewerprojects(). I can't think of any case that does not involve tasks since I expect the common case for audits, reviews, feeds, etc to be that there are results.

While the number (>0) of query results would decide whether a given panel is shown or not, also exposing the actual number of results would be IMHO interesting in the context of tabbed panels, so that each tab title could be shown as demonstrated in the mock-up below (please excuse my non-designer-ish CSS skills):

The result count could even include some kind of priority where applicable, so that the background color would indicate the urgency of the items in this tab.

I'm leaning here towards making empty buckets just disappear, and if all buckets are empty, No audits need your attention.

I went back and forth on this, because I like the clarity of the empty buckets, but with Maniphest (which has its own bucket UI), we don't show each individual Priority, and this hasn't seemed to confuse users.

We can also shrink/hide buckets from the panel context but keep them from the ApplicationSearch context. I think that's desirable -- if you go to /differential/ it's probably good to see all the bucket headers? Just not so good if you have a "Stuff to Review" panel on your home page.

👍🏼