Z:gnu-www-ja-copyright-versus-community--167bfe-Proprietary software keeps the/en

Proprietary software keeps the users divided and helpless: divided, because they're forbidden to share it, and helpless, because they don't have the source code so they can't change it. They can't even study it to verify what it's really doing to them, and many proprietary programs have malicious features which spy on the user, restrict the user, even back doors to attack the user.