I've seen it with a lot of celebrities, people I work with etc. But why does purposely insulting others make people feel good? I get the feeling that it makes them feel "strong" or like they're being "honest", but I don't get it.

In middle school, it happens a lot because the coolest kid is usually the meanest one. And the same thing applies with adult co workers. My best friend gives me constructive criticism but that's different than insults.

I have hurt people before because I'm closed off and honest when need be, but I don't feel good about it or use it as an identity. I don't know how people sleep at night knowing that they upset someone.