what's the point dev just put in a checkpoint and the attack is worthless. all it will do is slow down the network for as long as they are attacking it. miners will come back after the attack is over. not sure how DGC will be "dead"?
Is the dev going to be adding checkpoints every 10 blocks? Because that's about all a 51% attack takes, and the truth is, it's really difficult to notice initially unless you're actually watching a live version of the blockchain. Since most alt-coins have either no blockchain explorer or a very poor one, I will not be surprised when we uncover that most of the alt-coins have already been attacked.
The only way to somewhat protect yourself in this case would be to have 100 block confirmations on deposits to exchanges, and checkpoints every 50 blocks. Pools would only have to download a new client every few minutes.
