If I understand what you are describing, we have a "sandbox" scheme. We call it "greenbusters". It started out as a scheme monitored by a few editalls, but proved popular enough that support for a slightly different implementation was added to the editor interface.
As for the sites actually in unreviewed: we cannot make that public. We don't want spammers to know at what stage of the process, or in what order, or in what connection, their garbage was thrown out. And it can't possibly help 99% of the legitimate submitters. I mean, they submit, they wait, the site gets reviewed, if it has content it nearly always gets added. At that point they see it. The 1% or so of accidentally deleted submittals can be most effectively handled by the standard submittal policy. Adding overhead to that process will cause more delays, not less.
Now for a point of honor. Your use of the word "backlog" has been deceptive, and I believe deliberately so. On the one hand, you denied that you meant "submittals" when you said backlog -- well, actually, you acted offended by the misunderstanding when you were understood to be referring to "submittals", but in your last post your usage of it can have, so far as I can tell, no other meaning.
You are welcome to apologize for the deceit, or you may carry the weight of it added to your reputation. It is your choice.
As for the sites actually in unreviewed: we cannot make that public. We don't want spammers to know at what stage of the process, or in what order, or in what connection, their garbage was thrown out. And it can't possibly help 99% of the legitimate submitters. I mean, they submit, they wait, the site gets reviewed, if it has content it nearly always gets added. At that point they see it. The 1% or so of accidentally deleted submittals can be most effectively handled by the standard submittal policy. Adding overhead to that process will cause more delays, not less.
Now for a point of honor. Your use of the word "backlog" has been deceptive, and I believe deliberately so. On the one hand, you denied that you meant "submittals" when you said backlog -- well, actually, you acted offended by the misunderstanding when you were understood to be referring to "submittals", but in your last post your usage of it can have, so far as I can tell, no other meaning.
You are welcome to apologize for the deceit, or you may carry the weight of it added to your reputation. It is your choice.