仿开心网社区 can be translated as "模仿 Kaixin001 (Open哈皮网) community" or "Kaixin001-like community". Here, "开心网" (Kaixin001/Open哈皮网) refers to a popular Chinese social networking site similar to Facebook. Therefore, the phrase suggests a community that mimics or is inspired by the features and style of Kaixin001.
If you need a more specific translation depending on context, let me know!
A community that imitates Kaixin001. There are also two web games and forum pets. There are also a lot of movies and novels. It's pretty good for killing time.