To block another Argus user or follower who you do not wish to have access to your posts, look through your Followers list or post comments and locate the user you wish to block. Tap on their hexagon picture to open up their profile page.
From the user's profile page, tap on the options represented by the "..." at the top right corner of the screen. There will be an option to block the user which will prevent them from viewing any of your posts or profile.
From the user's profile page, tap on the options represented by the "..." at the top right corner of the screen. There will be an option to block the user which will prevent them from viewing any of your posts or profile.