I'd personally love to see an admin list. That being said, there are several issues that would have to be addressed before one was implemented. And at the end of the day, I'm not sure that if those issues are addressed there would be much utility in having one.
Things like admin privacy, having a public list available for potential hackers, and various other concerns that have been raised in the thread say that the list would have to be available to admins only. And if that's the case- why have a list at all?
Yeah. I'm an admin. What of it?