[manfredo]

I don't think this sort of analysis can measure the impact of deplatforming on people's opinions. While deplatforming may suppress the open dissemination of hateful ideas it's erroneous to assume these ideas become less prevalent as a consequence. This has happened in my workplace, for one. After the company made it clear it would not tolerate things like Damore's memo and Stuart Reges' article on women in computing, I and other people who agreed (or at least, aren't actively adverse to those views) shut up, and joined the chorous of people condemning them. But in private, it didn't change our views. If anything, it's made me even more skeptical of that sort of leftism.

Consider the fact that deplatforming (primarily of right wing speakers) in the US became significantly more prevalent around 2014, and 2015. It didn't help in the 2016 election.