As the information landscape continues to evolve, the widespread dissemination of disinformation is proliferating at a rate and scale never before seen in a democratic society. In recent years, major technology companies have taken much of the public blame for this reality, given their algorithms facilitate the sharing of—and sometimes even promote—falsehoods. This, however, misses a key reality; social media, search engines, and messaging services are not fully automated technologies. Rather, they are heteromated: they are reliant on participatory humans to serve their economic goals. Focusing on users, and on the sharing, rather than the origination, of disinformation, we connect theories of heteromation with those surrounding the Human Infrastructure of Misinformation (HIM) with the express purpose of contributing to a more holistic understanding of how and why misinformation is so prevalent online.