Hellbanning has a history of working well for deradicalization of online communities that were a lot worse than twitter is; Jeff Atwood has a good post giving a brief look at the history of it: https://blog.codinghorror.com/suspension-ban-or-hellban/
That's not proof that any one actual person was deradicalized, which was the metric.
Mr. Davis has 200 examples. I'm only asking for one. His method works. The deplatformers' citation of their own platforms only proves that they control their own platforms, not that any extremist view was changed.
