Well it is just that every few months or so popular websites feel the need to rearrange their entire layouts and disrupt the formats we have all grown accustomed to. This is not meant to be a stab at DA specifically, a vast majority of websites are guilty of this. Hop on over to Wikipedia or Facebook some days and you may find yourself wondering where the search bar or log out buttons have hid themselves. This is a common trend among web-developers these days, one I will publicly declare myself opposed to.
Now, I have no doubt their intentions are good. Nothing really makes the new layouts 'worse' then the old ones, in fact they are often an