The information regarding the transactions you carry out on your computer, the pages you access, the files you load, the music you listen to, the persons you chat with (and the reasons behind all these) have a monetary value, and is actually a valuable asset in the modern world - which is why anyone would be especially interested in these data and spying the Internet surfing behavior of individuals has become a truly profitable business. The results are then sold to interested companies, as customer profiles.
These cumulated data are extracted, for example, from cookies, which are generated by your personal computer when accessing an Internet page, and various entities then examine the email addresses we send, or our membership on different forums, etc. After collecting, associating and assigning these data to a person, high amounts of data are concentrated - some of them harmless, some of them less harmless, e. g. when used by organizations in order to formulate actions for alleged violation of copyrights.
When talking about curiosity driven fellow citizens, don't disregard your dear neighbors, your boss, or the organized crime. The Internet knows all your good and bad parts and forgets almost nothing. Regardless of the pages you access and the opinions you express - web pages, Blogs, communities, forums, YouTube, Facebook, Flickr etc. - you leave traces everywhere, which only have to be collected and associated by somebody interested in doing so. The number of Internet users increases daily, people who create their own Internet or blog pages, who permanently access other Weblogs and/or are members of a Community - and, starting from the idea of an alleged protection offered by the anonymity of the network, do not refrain themselves from directly expressing their opinions. Suddenly, sexual preferences, medical situations, hate tirades aimed at their superiors or less advantageous photographs become public. Every future employer is grateful for as many unaltered information as possible on a new candidate for a job position, which is why the human resources managers have already been using for a while now the information offered by the Internet when it comes to a possible hiring.
The state is also interested in your data. "Who doesn't have anything to hide..." has turned, in this context, into a defining argument frequently supported when discussing if state representatives should access personal computers, deliberately not mentioning that. Through such actions, the fundamental existential rights of an individual are violated, without even partially knowing the intensity of that accessing and the intensity of its effects.
The fact that those who agree that the state entities should survey the Internet, minimize the significance of the various online communication forms, as a new way of conversing is one of the issues debated - however, one that distances itself from reality. The young generation, especially those who grew up with the Internet and are almost always online, believes that the communication forms offered by their personal computer is almost the only way of permanently maintaining private and long distance social connections. A surveillance of the operations they carry out in this context would be the equivalent of an agent constantly present in that person's living room.
Then a search on Wikipedia for detailed information about certain sensitive subject in your country that is geo-restricted, could turn out a a fatal mistake. In numerous western democracies with currently expanding surveillance structures, issues concerning terrorism are targeted as well as crimes carried out by hackers by stealing data. We can only assume other subjects managed 'under the counter' and discussed little or none at all in public (for example, file-sharing and merchandise management frauds). If you show 'too great' an interest towards a certain subject and if it can be concluded, on forums, that you have certain political orientations, you might be included in a category of people you wouldn't like to be part of.
Warning: those who are looking for potential 'terrorism supporters' are not interested in knowing that you are a convinced vegetarian and couldn't even hurt a fly, but they become extremely attentive if, at some point, you express in a harsher way your discontent with the decisions of the current political class. This means you are constantly filling just one side of the account, while the other one is overlooked, so that, in time, a completely erroneous image of your personality is formed.
In other countries without democratic traditions you will certainly want to use CyberGhost VPN more often and in many more situations, because, in those states, the standards for defining an unwanted subject are much lower.