I've been critical of making empty pages. Better to not make links at all with no intention of writing. But a link alone does not make an empty page. One must click create after being warned that the page does not exist.
How often have I violated my own rule? I crafted this expression that will run in the browser's javascript console to report sitemap slots for empty pages.
wiki.neighborhood[location.host].sitemap .filter(info=>info.synopsis=='A page with 0 items.')
This works because a page with no items has no means of offering other than the generated page synopsis.
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Here I found one empty page with back links.
Feeling judgmental? Scan the neighborhood.
Object.entries(wiki.neighborhood) .map(([site,map]) => [site, map.sitemap .filter(info=> info.synopsis=='A page with 0 items.') .map(info => info.title) .join(", ")]) .filter(tuple => tuple[1].length)
Scanning a long list of my own sites I find some.
['found.ward.bay.wiki.org', 'Complex Numbers Made Simple'] ['forage.ward.fed.wiki.org', 'About Me, scratch'] ['h2.ward.asia.wiki.org', 'scratch'] ['ward.fed.wiki.org', 'drop'] ['ward.dojo.fed.wiki', 'Coding Standard Location or notes?'] ['oscon.fed.wiki.org', 'scratch'] ['splash.fed.wiki.org', 'scratch'] ['video.fed.wiki.org', 'scratch']
Mostly scratch files left from an old workflow.
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This html script will offer a clickable list of empty pages followed by a list if referencing pages, if any. github 
//wiki.ralfbarkow.ch/assets/pages/find-empty-pages/empties.html
We recommend adding a synopsis to empty pages hinting at intentions, or, removing the page and unlinking the references so as to not distract readers.
pages/find-empty-pages