The evidence is plain. Observe who gets unbanned. Observe who gets to operate again. I guarantee you it won't include all ideas. Want to be a radical terror org on Twitter? Or a doxxer? Or revenge porn poster? Or a spammer? Or the klan? Skinhead neonazi group posting racist memes? Etc etc.

I'm willing to bet these things stay banned. Because despite self describing as a free speech absolutist, he's really not comfortable being absolute about this belief.