User blog comment:BunsenH/Ghazt Stats Phase 3: Wishing Torches - Final Report/@comment-25404524-20170717025800/@comment-24577221-20170717035616

Yup.

According to my records, we started this stuff in late April of 2014, had to scrap some data because we had some kind of glitch, and really got under way in early May. Well, no one can say we haven't been rigorous. And we did show that monster level and happiness don't seem to play a role, too.