Questions about North Korea?

Because the North Korean regime does not abide by the conventions the rest of the world does - in the sense that they don't feel compelled to guarantee the health and safety of foreign nationals, no, it isn't safe for people who hold British or Australian passports. At all. Traveling to North Korea means that a person has to be aware of the inherent dangers involved. 

North Korea is governed by a dictatorship because that is the system of government that came to power when the country was partitioned after the Second World War. The situation remains the same all these decades later. If you wish to understand the situation more fully, you can read up on your history. 

It would be silly to say that there's no one in the country that enjoys watching animation, but the number of people who possess the means to procure it and to view it safely is bound to be incredibly small, though the North Korean government is constantly struggling with being able to keep the outside world from encroaching on North Korea more and more all the time. 

The reason why they would place recording devices and probably cameras in tourist's hotel rooms ought to be obvious. The government is completely obsessed with maintaining control and being proactive when it comes to perceived threats or potential threats. There is no proof that bathrooms are bugged, that's just something someone mentioned in a reply to one of your previous questions that ought to remain a baseless claim until there's evidence to substantiate it.