Patrols are a specialized type of WikiProject used in the English Wikipedia to watch over a class of pages and take any appropriate actions. Most patrol actions are performed by individual Wikipedians, but some are performed by bots—computer programs or preprogrammed scripts that make automated edits without a need for real-time human decision-making.
There is a great need for patrols on Wikipedia. Wikipedia is big. In fact, Wikipedia is huge. To help editors maintain reasonable quality on an encyclopedia this size, that almost anyone can edit, a number of Wikipedia community members have set up long-standing patrols. These patrols focus on various edits and feeds, and their members watch these feeds in the background, or from time to time, or really, whenever they like. Many of the well-known patrols have hundreds of users, and are directly responsible as a first line against vandalism, or other potential problems that may happen.
Why not join in?