I am more concerned that Shareaza has for a while included a KAD secttion for the caches, and includes a button to switch it on and off.
All reference to KAD should be removed or hidden, if there is no working option, then the code is cluttered with a messy extra, and users see a messy extra in the GUI.
If there are no plans to add/fix KAD, then we way as well also have a fake sock-drawer or hat-stand included.
How about changing the KAD button for a PANIC button ?