Figure 3.

Suggesting that negative mood may persist across discussions, users with no prior history of flagged posts, who either (a) make a post in a prior unrelated discussion that is flagged, or (b) simply participates in a sub-discussion in a prior discussion with at least one flagged post, without themselves being flagged, are more likely to be subsequently flagged in the next discussion they participate in. Demonstrating the effect of discussion context, (c) discussions that begin with a flagged post are more likely to have a greater proportion of flagged posts by other users later on, as do (d) sub-discussions that begin with a flagged post.