Platform bans of offensive influencers have been in the news a lot recently. While much conversation has focused on the ethics of deplatforming, the preceding questions about its effectiveness and what happens in its aftermath have remained under-explored. To explore these questions, my team (@asbruckman, @Diyi_Yang and @ChristianBoyls1) and I examined 3 case studies of prominent deplatforming on Twitter - Alex Jones, Milo Yiannopoulos, and Owen Benjamin. We report on this work in an upcoming @ACM_CSCW paper #CSCW2021