We could... you're just too darned moral to take those steps, or to take them by proxy. Respectable that, but... frusterating.
@what: "spectacular" usually means hundreds of thousands of bots in a network... if that had happened here, it wouldn't have been slow, it would have been inaccessible.
The thing that really pisses me off about DDOS, beyond the increase to the cost of throughput, is that it relies on exploiting random people to use as drones! What the hell is the point of compromising so many computers, then abuse their connection... which also drives prices up.
Botnets of all kinds are therefore hunted extensively, but are by nature elusive... they are a very corrosive force on the net. Sadly, the best ways to attack them, are also illegal and immoral.