The problem of users sharing links without reading them is not new. A 2016 study from computer scientists at Columbia University and Microsoft found that 59% of links posted on Twitter are never clicked.
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Twitter’s solution is not to ban such retweets, but to inject “friction” into the process, in order to try to nudge some users into rethinking their actions on the social network. It is an approach the company has been taking more frequently recently, in an attempt to improve “platform health” without facing accusations of censorship.