Always use Mod Organizer 2 (MO2) or Vortex . Never manually drag files into your Data folder.
While sharing mods is not technically "game piracy," hosting paywalled Patreon content is a violation of digital copyright. In rare cases, mod authors have filed DMCA takedowns and tracked IP addresses of users distributing their paid work. Downloading these links puts you at a small but non-zero legal risk. allthefallen skyrim mods link