What is the MUTE feature in Twitters?
"Mute" is a brand new feature of Twitter which enables users to control who they receive push notifications from. In short, it was introduced to reduce the amount of low-effort tweets by prolific Tweeters. Muting a user does the following:
1. Their tweets or retweets will no longer appear on your timeline
2. You will no longer receive push or SMS notifications about that user's activity.
To mute someone on Twitter, click on their username, click "…More" and then click "Mute @ [username]".