Twitter is experimenting with a “Hide Tweet” feature, hoping to inspire better conversations.
This is a public experiment, but it’s not known who gets to join in. Anyone that has access will be able to post a tweet, and then hide any toxic comments they don’t want to see.
Here's a thread from a senior product manager at Twitter:
Twitter is testing replies moderation. It lets you to hide replies under your tweets, while providing an option to show the hidden replies pic.twitter.com/dE19w4TLtp— Jane Manchun Wong (@wongmjane) February 28, 2019
For more info, read Gizmodo's article.