Because you never post much on it, if ever, but you always want to blame everyone else for the atrocities of the entire world and various countries have done throughout history.
Civilization is filled with these deeds, but we are here, now and have a chance to stop them from happening. We cannot erase the history of the world, but we can try and make the world a better place.
This is not some dream either, mankind has taken great strides to make this world a better place for everyone.