Oh, I agree. As an initial install, Hello Dolly is great for demonstrating the plugin functionality of wordpress. And yes, it does have a history with wordpress. But I shouldn’t have to delete it after every update – it would be like reinserting the default “This is an example of a WordPress page” or “Hi, this is a comment” every time I do a core update. If I deleted it, quit re-installing it.
There is a new ticket that addresses this issue a bit more reasonably. Vote it up.