article_snippet.sent: The findings suggest that posts written by FBUs are 'less readable', tend to veer off-topic and have fewer similarities in terms of language and content compared to posts by NBUs.
article_snippet.sent: We find that the average text similarity of posts written by FBUs is significantly lower than that of NBUs, suggesting that FBUs make less of an effort to integrate or stay on-topic,' said researchers.
article_snippet.sent: The team also found that while there was no consistent trend with respect to the use of words containing negative emotion among posts made by FBUs, they are less likely to use positive words.
article_snippet.sent: FBUs are also more likely to swear and use less tentative or conciliatory language such as 'could', 'perhaps', or 'consider'.
article_snippet.sent: In terms of activity, the research also found that FBUs purposefully try to create discussions, or actively respond to an on-going discussion.
article_snippet.sent: As a result the study spend more time in individual threads than NBUs.
article_snippet.sent: Still, across all communities, FBUs appear to be 'effective at luring other users into potentially fruitless discussions', which is a sign of troll-like behaviour, said the study.
article_snippet.sent: FBUs contribute significantly more posts per thread FBUs participate in, according to the results.
article_snippet.sent: Our initial explorations suggest that FBUs cause discussions to veer off-topic: replies to FBUs were significantly less similar to preceding posts in a thread than replies to NBUs. '