Because the best part about unix/linux is that everything is a file (or more broadly, everything are files and folders) and this is congruent with that.

The more I program, the more I appreciate:

- 1. tools that are extremely small and functional and can be composed together (re: unix pipes, cat foo | grep bar)

- 2. things that are just files and folders on disk, so that they can get introspected, moved to different disks, symlinked, put on FUSE filesystems, etc. The common interface of file or folder is very flexible.