"Skype requires the use of a client program that is not free software; in other words, the users don't control it — it controls them. A nonfree program denies

"Skype requires the use of a client program that is not free software; in other words, the users don't control it — it controls them. A nonfree program denies users freedom, which is unjust in itself. Making the ethical issue sharper, for you to use Skype is to encourage someone else to use Skype, which means you're pressuring someone else to surrender freedom as well. This is plenty of reason to refuse to use Skype, but there are more reasons." How it pains to read such texts. "Everything that's not open source is evil."