When I get a node stolen, I don't dwell on it. i might do a /rude or /angry and move on. But, the name of the char who did it does get registered in my memory as an ***. Who knows how long I'll remember that, but repeat offenders make it easy to remember.
Its just common courtesy, of course there are no rules preventing node stealing. but, in real life, when you have your blinker on waiting for someone to pull out of a parking spot, it is common courtesy for others to let you have that spot. Or if you are standing in line for something, it is common courtesy for someone else to not cut in. You don't have your name on the spots, and it is not illegal for someone else to take the spot. but doing so, definitely makes you an *** in people's eyes and not many people would like to interact with you.
But, judging from your responses, you don't have a problem being known as a jerk and an *** anyway. Prolly a result of the anonymity of being on just a messageboard behind a handle.