Nike is addressing the "RSVP system"
http://help-en-us.nike.com/app/answers/detail/a_id/36141/p/3897
Nike often releases special, limited-edition items known as launch products. You can find the latest launch products and details on Nike’s launch calendar.
Given the popularity, many Nike launch products sell out quickly. It’s best to be prepared. You can use the following tips to improve your chances of securing Nike launch products.
We believe in a level playing field for product launches on Nike.com. That’s why we don’t authorize the use of automation or scripting methods intended to offer any shopper an unfair advantage. If we determine that an order was placed using one of these methods, we may refuse or cancel the order.
To learn more, check out the Nike.com Terms of Use governing the use of Nike.com, NIKE mobile applications and other NIKE products and services.
Twitter RSVP is used to help manage product launches at Nike Stores. Nike’s intent is to make this a fair and fun process for all Twitter RSVP participants. In attempt to deliver a safe and level playing field, Nike reserves the right to ban any users who make threats, harass or attempt to cheat the system by opting into programs that provide them an unfair advantage. Please see our Terms and Conditions below for more information on this policy