I have the same sentiment with my own internet habits. Could I be doing something more useful? Totally. I could be going on a walk, reading a book, or practicing a hobby. However, I don't think it's too harmful to stroll through the same rolodex of websites as a form of leisure even if the content provided doesn't nourish the mind and the body. If I'm being honest with myself, I'd find another vapid avenue of entertainment had I no access to the internet. The concerning aspect with social media (and online content in general) is the constant desire to check back in on relatively frequent intervals. I try and stay away as often as I can but I still sense that pull to check in..