姓多名余名叫多余
[xìng duō míng yú míng jiào duō yú]
In traditional Chinese culture, family names ('姓氏xìng shì') come before personal names ('名字míng zì'). Here, however, this net-name is using pun: having too much '姓xìng' - which sounds like 'much-too' in English and means too many family names and '多余' which literally means unnecessary excess. This implies someone who's trying to overcomplicate or overdo something trivial