As you probably know, the scene is working through FTP servers. All the torrents are starting from FTP servers, the trackers are getting these and they are finally ending to you !!!
You are just downloading as much as you like and there is no need to seed and maintain a good ratio !
Everything is encrypted and safe !
The speeds and pre-times are amazing !
You can also check this thread for some more details :
http://torrentinvites.org/f86/ftp-access-52138/