Plugins are ways to extend and add to the functionality that already exists in WordPress.
The core of WordPress is designed to be lean and lightweight, to maximize flexibility and minimize code bloat. Plugins offer custom functions and features so that each user can tailor their site to their specific needs.
In the PA Multi-site network plugins have been selected to be compatible with each other, offer enhancements that are simple and beneficial and, ensure the overall platform is not compromised.