Some people use offensive language in describing the person who have mistaken and post it in the internet. Everyone in the world even I commits mistake and it can not be avoided. When someone makes an error – be kind about it. If it is a small error, we may not need to say anything. Even if we feel criticizing about it, we should always think twice before reacting. Having good manners in our self does not give us authorization to correct everyone else. If we notify someone of an error, point it out courteously and if possible by private email rather than in public to avoid embarrassments. We must give other people the benefit of their own doubt not on others.