I think many don't even know Necromancer exists.
Could an easily accessible UI tab be provided to highlight two month old questions with no answers and a score >= 0? This would both enable people to find them and encourage answering to get a shiny silver badge.
Currently you have to craft a special search by answers:0, votes:0 (really means score >= 0), closed:0, sort by newest, and change to a specific page in the results.