Why? Well... I have stolen 19140 humanity today, this is assuming the rate of 10 humanity per suck is true, and that all opponents had humanity capped at 99. I stole most of it from gankers, but about 3000 of it is from BS fishers or just rude imbeciles who try to kill me while spawning, most of whom called me a *** and stopped showing up as well. The bottom line is, Humanity takes forever to replace, and I'm good at stealing it. As soon as people do something very cheap, generally ganking, I get to work. It doesn't matter if I kill you, I just need to steal humanity once to take 10 of it, and then jump off a ledge later so my humanity resets as 0. In fact, I'm about to get a lot more efficient then I already was, thanks to what someone just told me on skype... I'm gonna start using a particular sword to TWoP them first, then steal their humanity. The final result, is the gankers leave. Usually they go to the forest, I'm planning on clearing them out there as well.
So, how do you avoid getting utterly destroyed by Gankers? First off, change your spawn, start the invasion prompt near the Ultra Great Sword using BK, and you'll start in a different location. This permits you to avoid instant ganks via TWoP or other such stupidity. The forest might be more difficult, but you can do the same thing by starting it near Alvina, reducing successful ganks by just a minor amount. Get poise to 77 and tank their blows.
I want multiple people to start this right now, dark hands everywhere. The gankers will leave.