Answer:
I would tell him that it is not good to be posting things anonymously, because it causes very negative behavior, and it allows to to hide behind their cellphone screen; almost as like a shield from the real word. I would try to have him engage with people face to face! Some people tend to put on a fake persona online because nobody can actually see that, and most of the time it is because they are unhappy, make sure that they are doing well mentally!
Explanation:
i hope this helps