This was posted twice to Hacker News, the first article 9 days ago and the second 7 days ago. I suspect that this group leans overwhelmingly liberal/progressive

This was posted twice to Hacker News, the first article 9 days ago and the second 7 days ago. I suspect that this group leans overwhelmingly liberal/progressive, so I understand that this might not be as interesting to this group. But I'm still surprised. Perhaps people didn't respond because it's one, unsubstantiated source. Anyone know how to test this claim of Twitter shadowbanning from Breitbart?