This document discusses potential harms from data use including privacy damage from restricting self-expression, discrimination damage from unfair treatment of groups, dehumanization damage from treating people as data points, and manipulation damage from deceiving people with data. It also lists example categories for data profiling and describes an "unintentional evil scale" ranging from clueless to ambitious to characterize behaviors. Finally, it notes concerns about overconfidence in algorithms, methodology, claims of neutrality, and origins related to big data use.