After my initial scare (has my machine been "owned" by this app, and is this a set of login names for script kiddies to use?), I realized it was probably a list of blocked registration names. Whatever its purpose, the point is that this program goes out and phones home without telling me, and there appears to be no way to turn off this behavior. Other programs that silently "phone home" have taken a lot of flak for it, and deservedly so. I don't see that there's any reason to trust (or use) a program that does something behind my back, no matter how good its features may be.