Cyber hoarding¹ means an individual has an excessive amount of pointless word documents, pictures, etc. saved on his/her computer that s/he will never look at.

网络囤积指一个人在自己电脑上存了大量毫无价值的文档和图片等文件，而他根本都不会去看一眼。

For example:

Cyber hoarding is Katie's flaw because she has more than 2000 photos on her computer of random² stuff like jellyfish and city landscapes.

网络囤积是凯蒂的一个毛病。她电脑上存了2000多张杂七杂八有关海蜇还有城市风景的照片。