I tried your tagging tip, sent a tweet yesterday with a video by a black guy who shows many examples of Trump not being a racist and tagged CNN&Co, for their readers to see. Result:  - Not one like or comment (should have given a bunch or protests or attacks) - All notifications from the past disappeared from my account. - Had to change password as Twitter informed me of possible violation of my account. Conclusion: Shadowbanning.  They didn't like my tweet^^.  https://twitter.com/whitepillanon/status/1267827821281292299