I do not disagree that encryption will always exist.

I'm stating that a commercial organization can be held liable and have action taken against it for running a messenger that violates the law of where it operates.

People torrent, but you would not expect a commercial torrent service to last very long if the law prohibits it. The technology can exist, but an entity formed within the framework of a government's regulations (in this case, a company) cannot run it.

Am I wrong?

I respect your opinion my friend, you are not wrong, you are on your way.

Privacy is very important, millions of individuals can't loose it just because some criminals, that's is why I agree that this kind of companies shouldn't save the messages. This is my opinion.

Criminals could use other kind of encrypted messages, like email, or their own code. So it's in vain every body lose his privacy because some individuals, we must fight for other ways to combat crime.

The question is whether a media sharing service that operates in a country with no IP laws is required to either obey laws of countries that do or take reasonable measures to prevent citizens of such countries from accessing the service.