They took it upon themselves to make it their job to know what their clients are doing. This is a very dangerous thing because they have the power to censor anyone and anything at the lowest level. OP, if you are speculating if Bitcoin could be "censored", the answer is leaning to no and maybe. But it would be harder for them if there are more full nodes running. Keep maintaining the node for as long as you can.
Well ISP can monitor how we run our nodes but I dont believe that it is dangerous. As long as we are not doing any illicit activities then even if we are being subject to monitoring if we are are not doing something wrong then its fine. Well, I agree with you that later on the development of bitcoin the government will place regulation and monitoring system on bitcoin.
It may not be dangerous now but it can be if a government is so determined to ban and outlaw Bitcoin. In America I believe it will be like how they treat the torrent users. The ISP will issue warnings the first 3 times and then report them to the government if they do not listen. Of course in US police state fashion the authorities will break your door down and get 10 swat team members swarm on you and your family inside your home.
