We investigate how people's `humor style' relates to their online photo-sharing behaviors and reactions to `privacy primes'. In an online experiment, we queried 437 participants about their humor style, likelihood to share photo-memes, and history of sharing others' photos. In two treatment conditions, participants were either primed to imagine themselves as the photo-subjects or to consider the photo-subjects’ privacy before sharing memes. We found that participants who frequently use aggressive and self-deprecating humor were more likely to violate others' privacy by sharing photos. We also replicated the interventions' paradoxical effects~-- \textit{increasing} sharing likelihood~-- as reported in earlier work and identified the subgroups that demonstrated this behavior through interaction analyses. When primed to consider the subjects' privacy, only humor deniers (participants who use humor \textit{infrequently}) demonstrated \textit{increased} sharing. In contrast, when imagining themselves as the photo-subjects, humor deniers, unlike other participants, \textit{did not increase} the sharing of photos.
https://doi.org/10.1145/3411764.3445258
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