yes nodes advertise their bandwidth, can configure it as well to underutilize if you want
was a bit of a meme answer though as I only recommend it with a cooperative ISP, you'll get flooded with spam/hacking abuse complaints so be well prepared if you do
the ISP that this server is hosted with is the current KF host. they finally delivered in a new datacenter
lowendtalk.com/discussion/188074/win-a-10gbps-blade-server-in-kansas-city-with-cosmicguard-ddos-protection-plus-pre-order-special
so i dont think they really care about any of that tbh