Privacy in webworld

Privacy is the most illusive word in internet. I have been harassed to no end by a gang of trolls for more than two years so I mostly keep a check on my visibility on internet. I practice all the safety measures like gurumantra- deleting private files and every thing etc etc.

Even after that, I feel a little sarcastic when I see that if someone is obsessed with me, like those trolls were, they can find out even the comments I have posted on the blogs of my friends. How close am I to a specific cyber-friend, and after that they can play their games.

They won’t have to take trouble of tracking me; internet will do that favour to them.

Will it be rude if I say it’s a gross invasion in one’s private conversation with one’s friends?