arXiv:1309.2402cs.SI
Anger is More Influential Than Joy: Sentiment Correlation in Weibo
Early discovery. Linked by one identifiable commenter. This paper is outside the main ranking; a mention is not an endorsement.
Abstract
Recent years have witnessed the tremendous growth of the online social media. In China, Weibo, a Twitter-like service, has attracted more than 500 million users in less than four years. Connected by online social ties, different users influence each other emotionally. We find the correlation of anger among users is significantly higher than that of joy, which indicates that angry emotion could spread more quickly and broadly in the network. While the correlation of sadness is surprisingly low and highly fluctuated. Moreover, there is a stronger sentiment correlation between a pair of users if they share more interactions. And users with larger number of friends posses more significant sentiment influence to their neighborhoods. Our findings could provide insights for modeling sentiment influence and propagation in online social networks.
Well I don't know about hacker news, but there is a study that says anger is the most viral feeling in social media, e.g. twitter. http://arxiv.org/pdf/1309.2402v1.pdf
throwaway13337View on HNParent context