In the recent searchings, it has been found that the most popular community software project with a non-commercial license: MAME. It seems someone even created a non-commercial license based on MAME's, due to the problem of people "using CC-BY-NC licenses for software."
Since there is such a dearth of non-commercial licenses out there, I may be stuck using this MAME-like one.
Ref:
http://mamedev.org/legal.html#license[
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