Use of skin swappers violates Epic Games' Terms of Service. There are numerous reports of permanent bans, especially for content creators who record or stream while using them.
The Discord server serves several functions for its community: galaxy swapper v2 discord
The Discord is the primary community hub for a popular third-party Fortnite "skin changer" tool. While it allows users to locally modify their game files to view unowned cosmetics, using the software—and joining associated communities—comes with significant security and account risks. What is the Discord Server Used For? Use of skin swappers violates Epic Games' Terms of Service