When you restrict someone on Instagram, their direct messages won’t land in your inbox, and their comments on your posts won’t be visible to others. You will not receive any notifications when that person comments on your posts or sends you a message, and they will not be able to see some of your activity, such as when you are online. However, the person you restrict will not be aware that you have restricted them. The chat with the restricted person will move from your main Direct inbox to Message Requests. The restrict feature aims to protect users from harassing, abusive, or annoying comments and messages on their profiles. It is a more subtle way to limit unwanted interactions without completely removing them from seeing your content.