After how many years Arthas was killed? I also covered that in the other thread:
Your post is what ridiculous. You want to be the only victim so much that you even create false difference between two ridiculous similar situation…
Going by your statement, NE fan can’t complain as long as it doesn’t make at least five years from the moment that Teldrassil happened to the moment that Sylvanas died. Because this is the amount of time that past from WC3 Frozen throne to the Icecrown raid.