p. 91-94
One of the social cost of the internet flamings(“enjyou”) is to discourage speeches in the cyberspace. This paper estimated this cost using internet user survey and found that 15%∼20% of SNS users put some restrains on their speeches in the internet. We also found that number of participants to the flaming was very low, that is, under 1% of internet users. Frequenly participants have peculiar characteristics.