She seems to be legit, in that she's given some evidence that she's treating patients or attending conferences like she's mentioned. It's probably not iron clad proof, but she seems likely to be real. What I will say about Dr. D is that she may be a little clouded by her opinion of Leronlimab. One example is a post she made on YMB, at least once, where she said the mTNBC BTD was imminent. It was written like she had a little more knowledge about it than the rest of us and we could just sit back and watch the show she knew was coming. Of course we all know LL wasn't granted a BTD (yet!) so I take everything she says with equal grains of salt and truth.
The DoD speaking in depth with Dr. Kelly could very well be real. But just because they spoke doesn't mean anything is brewing. I sometimes get the feeling that Dr. D is trying to dish out the optimism at a rate equal to or greater than the bashers she's posting with.