Since I'm not with Clearwire anymore (end of contract) I can say that there are people in the core networking that do follow and respond the this list.
I can say that their backbone is solid and the people there really do care about the network. If you have serious a backbone issue with Clearwire a message on this list will result in a response.. -- Joe Hamelin, W7COM, Tulalip, WA, 360-474-7474