I wanted to cite a statistic on whether vandalism at Wikia is higher or lower than on Wikipedia, but couldn't find anything. Is anyone familiar with research that I may want to check out? I am drawing almost nothing for studies of Wikia, outside the recent paper by Aaron Shaw and Benjamin Mako Hill (CC-ed), which did not however focus on vandalism. Wikia (the largest wiki farm?) appears to be drastically under-researched...