Not Your Personal Army (often abbreviated as NYPA) is a foundational internet rule that originated on 4chan's /b/ board around 2005. It serves as a stern reminder that the community is not a tool to be used for personal vendettas or targeted harassment campaigns requested by individual users. The phrase became an unwritten rule of the internet to prevent boards from being flooded with low-quality requests for doxxing or raiding. Over the years, the meme has evolved from a simple text-based rejection into a versatile template used across social media to call out users who try to manipulate a collective for their own benefit or petty grievances.