I'm not sure if this is sarcasm, but I've been blown away by the thoughtful responses I've gotten from dang. They don't always come quickly, but I would expect that given how crazy I assume that inbox is.
I suspect the emails are triaged quickly and there is a low-priority bucket which may or may not ever get a reply. In my experience if there is a clear call to action and addressing the issue will have any sort of meaningful impact, it's unusual to not get a reply.
A wizard is never late or early, but arrives precisely when he means to.