Why have the servers been so garbo lately

So yeah, I had to reply mission 10-1 because I was with a party yesterday and the servers dc'd and the site went down. We only got to floor 2 though so we didn't lose much, it was just annoying.
And today the game has been lagging, 2 bars constantly, getting hit by attacks that are a few feet away due to the ping; had a freeze for 8 secs and lost my emergency revive to a rocket puppy...
And I almost got skrewed by the boss as the game lagged and stalled (I managed to prevail though, somehow) but the lag almost wasted me.
What is this.
PS. I additionally ran into a "Validation" error several times whilst trying to make this thread. Why are the servers so broke, I think I might have another break and check back in 5 months (game is kind of dead anyway)
I'm having a lot of issues with lag and connection, too. Something really needs to be done.