Dick Costolo, Twitter's chief operating officer, disputes this, arguing that people often use it to search for, say, immediate reactions to product launches.

推特首席实施官员迪克·卡斯特罗与之意见不相伯仲，他认为人们通常用它来搜索，产品发布的第一反应。

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Twitter CEO Dick Costolo says his company is now seeing almost 250 million tweets every day, up from 100 million at the beginning of 2011.

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Earlier this year Twitter chief executive Dick Costolo said it would introduce measures to help curb the proliferation of "hate speech" and so-called trolling on its service.

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Twitter continues to get serious about how to make money on its service and experiment with advertising, not a month after new chief executive Dick Costolo took the company reins.

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