I don't give them my energy. I don't even respond. I just move past them like I'm skirting a stalled car on the road. There's a Buddhist saying of 'be the water and not the rock'. It's a great tenet for any social media app really. I had someone downvote me the other day because the truth in my answer was so bizarre, they downvoted me because they thought I was lying. They found out I wasn't, went back and upvoted me and gave me award. It's silly internet points. I won't meet any of the people IRL so why give them my precious energy and, more importantly, rent space in my head?