I'm thinking the latter, given her record on here, but it's also worth bearing in mind that being a professional of any kind doesn't make you immune to nonsense. It's possible that he believes flaccon 100%. That doesn't make any of it more credible. In fact, given the fact that the first letter said that he's no expert on the supernatural, I'd say that that makes most people on this board better qualified to judge this case, given that we do look at these kinds of things all the time, and some even make a living doing so. There are experts on the supernatural here, and even those of us who aren't experts have more experience and knowledge than it seems that this doctor has.
Of course, flaccon is ignoring what the more qualified people are saying and holding on to her GP for 2 reasons - firstly, that way she can reinforce what she wants to believe (regardless of whether that's what he's actually saying), and secondly she seems to have a great deal of respect for authority figures and gives his opinion more weight simply because he's a doctor.