Twitter back then. There was some misinformation, but it was useful for gathering information. https://www.itmedia.co.jp/news/article/2607/28/2000000249/

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あのころのTwitterな。デマもあったけど情報収集に役立ったよ。 https://www.itmedia.co.jp/news/article/2607/28/2000000249/