The question sandbox has helped a lot of people. At this writing it has 146 answers, including the deleted ones (many of which were deleted after turning into actual questions on the main site).
The sandbox works when the community provides early feedback. This has been spotty, hence this call for sandbox duty. But it's also been pointed out that it can be hard to find the questions in need of attention there.
The default view of a page sorts the answers by votes and moves all deleted ones to the end of the page. But for something like this, it can be more useful to sort the page by activity, so that the most-recently-touched posts show up first. But that mixes deleted and undeleted posts, so you end up with (currently) five pages of answers to page through. That's no good.
This might not be as much of an issue if we didn't have so many old, undeleted answers. The sandbox contains posts last edited in 2015 and not deleted. Did they turn into questions (and so can be deleted)? Did their authors abandon them? Does the sandbox have a time limit after which posts should be deleted regardless of outcome? More than a year ago there was some discussion about having a time limit, but it wasn't pursued.
The sandbox is heavily linked, so I don't think we want to just close it down and start a new one. But it's getting harder to manage in its current state.
What should we do about the current state of the sandbox?