What happened to all the nippy sites

The term "nippy sites" isn't widely recognized, so it's possible you're referring to a specific category of websites or a particular trend that is not immediately clear. Historically, the internet has seen many sites and platforms rise and fall based on trends, technology changes, user preferences, and market conditions. If you mean websites that were known for providing quick, short, or snackable content—like certain social media platforms or news aggregators—they may have disappeared or evolved due to competition from other platforms, changes in user behavior, or shifts toward mobile and app-based browsing. If you can provide more context or clarify what you mean by "nippy sites," I would be happy to help further!