Thousand of reasons for being called "noob" such as: uber noob, move noob, acc uber noob, fast internet noob,...
So, there are some ppls will cry as:
-"noob, use FO items I will kick ur ass!"
-"noob, if I have good internet I will kill you easily!"
-"noob, if I have good computer I will f**k ur noob!"
etc...
In short, to all who say others "NOOB": F**** YOU!