Problem: It can be difficult to find articles linked from a page which satisfy other criteria.
Proposed solution: Give search a linksfrom: filter, like linksto: but checking the other end of the wikilink. Following redirects would probably be helpful.
Who would benefit: Readers using, and editors maintaining, list articles, navboxes, etc.
More comments: incategory: and PetScan work for some cases but it can be hard to combine link checking with other filters efficiently.
