Here we go -- a Halloween themed code for finding "spooky" links:
\define chimera-counts-filter() $(boo)$ +[nsort] +[!prefix[1-]]
\define scares-ghost() [[$(scares)$-$(ghost)$]]
<$list filter="[all[tiddlers]linksis[missing]!is[system]]" variable="ghost">
<$list filter="[<ghost>backlinkscount]" variable="scares" >
<$wikify name="boo" text=<<chimera-counts>>>
The results are presented as false links, with a number and a link name, which shouldn't matter since the "real" links don't exist either.
The first macro allows you to trim down the results. The snippet "+[!prefix[1-]]" removes all the links with just one reference. You can add more snippets if you don't want to see other numbers (2,3 ,etc) It works this way because TW doesn't have number comparison tools.
Keep in mind that most of the links will result from camel-case code where the fix is to put a ~ in front of the false link.