This seems like a fatal flaw for one of Tor's stated use cases: helping political dissidents living with highly repressive governments. How do you publicize a

This seems like a fatal flaw for one of Tor's stated use cases: helping political dissidents living with highly repressive governments. How do you publicize a service and at the same time not allow the relevant authorities to discover it? What they're doing seems to make it harder, but in principle it will always be detectable. This would make me think twice if my life depended on my connection not being detected.