Selecting to Mute or Block a user does the following:
Mute: You will no longer see that user’s posts in your feeds.
Block: You will no longer see that user’s posts in your feeds and the blocked user won’t be able to view your posts or profile.
To mute or block a user, complete the following steps:
On a user's profile, or underneath one of their posts, click the three-dots icon to open up the options menu.
Click ‘Mute User’ or ‘Block User’.