A computer-implemented method of detecting automated identities, including. The method includes, using one or more computing devices, providing for display to a user a first representation of a first profile for a first identity and a second representation of a second profile for a second identity, providing for display to the user a choice indication mechanism for indicating a judgment about the first representation of the first profile for the first identity and the second representation of the second profile for the second identity, receiving an indication of the judgment from the user about the first representation of the first profile for the first identity and the second representation of the second profile for the second identity, and determining whether at least one of the first identity, the second identity, or the user is more or less likely to be automated, based at least in part on the received indication.