别人会发光i你只会发丧
        
            [bié rén huì fā guāng i nĭ zhĭ huì fā sāng]
        
        
            The username contrasts someone who brightens up their environment (symbolizing positive energy) against the user who only brings gloom or melancholy. The inclusion of 'i' may imply a focus on oneself in this negative context.