Being followed and camped by the same guy in different zones.

Hello, I have been camped from the same player for the past 2 days. It started in the outlands and now in northerand. That player keeps following where i am. As soon as i log in he logs in too. And starts looking for me. If he finds me he starts camping. I know ganking and camping someone is not against the rules but this is different. That player is pecifically looking for me for 2 days in row. He logs in just to camp me. I've been looking at him and he is doing that for hours. I am a druid and i can cloak so i can look what he is doing. I gave it time by doing some home work and stuff but he or she persists on it. It's to a point of dowright insane.

Isn't this at this point supposed to be classified as harrasment?