Typing chat with haha ​​?? Means you are a Liar

According to a study by a national institute of statistic organization revealing that social media users do not fully express their feelings while communicating.
According to the study involving 2000 volunteers showed that the person who wrote the sentence laugh actually did with a face without expression.
Though many of them deny that nereka is not like that.
According to one internet user he said that sometimes he wrote hahaha because he just wanted to appreciate the jokes of his chating friends.