Unfortunately, this is becoming a trend with people as they are now seeing it as the best thing to do.
Stop talking ill about someone you know nothing about just because someone else told you something about them. Stop believing everything people tell you about others except you've heard it from the person as well.
There is no need developing hate on someone you heard something about and you are not even sure whether what they said is true or false before you came to conclusion.
Stop this act! It's too bad.
This is why it's good to hear from both parties if an argument is going on, before you judge