This is a prison. The individuals are dangerous. Truth be told, the more dangerous ones would probably be more clever and avoid answering, or answering truthfully.
I have made conversations private, as well. Nobody else should be able to see them. I am the only one with access to all the data, in addition to Sentience, but I suppose there may be hackers.
But this is run by an Artificial Intelligence system. If the hackers were experienced they possibly would have rewired the system to their advantage.