People who are excessively obsessed or addicted to social media are often referred to as "social media addicts" or "social media enthusiasts." Another term that has gained popularity is "social media junkies." These terms imply a strong, almost uncontrollable, attachment and preoccupation with social media platforms. However, it's essential to approach such labels with sensitivity and empathy, as excessive social media use can sometimes be a symptom of underlying issues such as loneliness, anxiety, or depression.