Twitter introduces a new feature that allows any user on the web to remove a follower without excluding him, an action also known as "soft block".
To block a follower, go to your profile, click followers, click the three-dot menu next to a follower, and then click "Remove this follower." (You can see what this option looks like in a Twitter image at the bottom of this post.) The follower you remove will not be notified of the change.
A soft block is different from a block because it allows a user to still see your tweets and send you a message, but will not see your tweets in the feed. Of course, when you remove a follower, he can follow you again if he wants.
The function can be useful if you do not want to make a complete block but want to "create some space". This new method from Twitter is a little easier than the previous one, which required you to block and unblock someone manually.
The ability to remove a follower is the latest feature of Twitter to give users more control over their experience on the platform, to reduce harassment and abuse. In September, the company began testing a new feature Safety Mode which temporarily blocks abusive accounts, although it is unclear when it may be released more widely.
Source of information: theverge.com