Mostly use by insecure people who feel the need to undermine people's feelings to the point where it is absolutely unbearable and action must be taken.
Emotional abuse is not a joke. People say its not abuse because there's not physical harm being done, but that is not true at all. In case you might of not known before, words do in fact hurt, and they leave marks inside our brains as well.
Emotional abuse can drag someone to the ends of insanity. It can cause grief, loneliness, even suicide.
If someone tells you they are being emotionally abuse, please take action if your an adult or tell an adult if you are a kid. This is not to be taken lightly. A few words can go a long, painful way.