there is nothing to justify, . It is always more common during the initial month or two after a luanch. Maintanance is jsut a fact of life when it comes to MMO's. It is all covered in the Eula that you don't have to agree to if you don't want to!
Yes i know but what about My playing time, what about my this, or my that. Just think about it though, you are not the only one this world revolves around!