Left image: Close-up of phone screen, that has the phrase "Group Chat" on it, and the phrase "28 People" right below it. It  has button labeled "JOIN", and a person's finger is seen clicking the button.
Right image: A touch screen with a "mute notifications" button symbol ( a bell icon that is struck through).  A person's finger is seen clicking the button.
This is ironic because the person joining the big social group, presumably interested in the happenings of that group, motivated to engage with these people, MUTEs the group as soon as they join it, indicating they are not interested in it and do not  want to be bothered by it.  These actions are contradictory from a social perspective, and illuminate a weird fact about present day online life.