姑娘眼睛多美多不适合流泪少年嘴唇多薄太不适合允烟
[gū niáng yăn jīng duō mĕi duō bù shì hé liú lèi shăo nián zuĭ chún duō bó tài bù shì hé yŭn yān]
This can be translated into 'A girl whose eyes are so beautiful should not shed tears; a boy's lips are too thin to suit smoking'. The username seems to express sadness over beauty being destroyed by sadness or vices. Maybe the owner believes that people who are as perfect as poetry shouldn't ruin themselves due to bad habits or unhappy experiences.