Could it be great, if LFS could tell if someone has uploaded some mp3 or exe files for downloading? or to let us know if one file of that type has been downloaded so many times?
The problem is how to check for them. If it is via FTP it would be possible. If it's through a web script then mod_security would be a better place to put such a filter. The other way would be to scan the /home* partitions which would consume substantial server resources.