The Particle View Distance Increasinator, as the name may suggest, makes it possible to see particles from farther away. Why would you want this!? For minecraft servers and maps!
In 1.8, developers and mapmakers can force particles to be viewed from whatever distance, but in 1.7.10, this is not possible - with vanilla. The Particle View Distance Increasinator fixes this!
This mod is only, and will be only, for 1.7.10. It is not useful in 1.8, where developers and mapmakers can make particles work for any distance.