Yacoin is pretty awesome, the coin parameters and community are brilliant.
It's a shame it isn't more popular.
If only it had launched not as a fork but as a stand-alone coin written from the ground up, it would no doubt be one of the strongest coins.
Now, if only someone can take scrypt-chacha type PoW and use it in a brand new type of crypto technology coin unlike Bitcoin or CryotoNote protocol, then it would be unstoppable.
YACoin will be unstoppable. Just wait and see....