Blackmore is not credible.
"Just a few years of careful experiments changed all that [her beliefs on about 12 different research topics]. I found no psychic phenomena—only wishful thinking, self-deception, experimental error and, occasionally, fraud. I became a skeptic."
1. Ponzi scheme science. The above is called, 'employing linear inductive inference from anecdote, to prove the null hypothesis' (Hempel's Paradox). It is scientific fraud (it is also indicative of a well concealed God Complex). Be very wary of a person who does not grasp the limitations of the mode of inference they have employed. This is the same trick implied by the
JREF Million Dollar Challenge. The way a faker follows up a Hempel Paradox shell game is to enlist the aid of a vigilante bandwagon or club bullyinig to help reinforce their contention, before it can be visibly challenged by real science. This is a form of Ponzi Scheme, wherein the influx of support is used to finance any potential 'loss' from the original corrupt science.
2. Pseudo-skepticism. Skepticism is not a conclusion, it is a method of disciplined mind. Skepticism is not an identity, nor a state of denial, it is a mode of thinking BEFORE conducting science, not AFTER it. She became a skeptic 'after doing science' - a key warning flag of deceit. This is not how it works at all. Skepticism is the journey, and not a particular destination. Never trust a researcher who has not learned this, as they have not actually done science - they have simply foisted sciencey-sounding anecdotes.
3. Religion of Negative Reactance. The case where one suddenly 'sees the light' and jumps from one extremist position to the contrathetical extremist position, in short order - never having spent any time whatsoever inside the discipline of a neutral state of mind. She believed this, and now she believes that. This is fakery. She has never existed in any other state of mind, and thrives off of the false surety/security of 'belief'. Be wary of a person who cannot exist, except inside a state of belief/fanaticism. This is a big indicator of lack of personal integrity.
4. Religious anchoring bias. She is a celebrated activist member of a fundamentalist religious cult: nihilism. She could never publish any finding to the contrary, even if she found one.
5. Self Aggrandizement is the Top Priority. She took an immediate celebrity leadership role inside this religious cult (a warning flag) and has always depended upon it for her celebrity, authority, publishing merit, money and echo chamber of belief. There is no journey here. No discovery... only a gigantic focus upon self. Each 'discovery' is packaged so as to increase her celebration as an authority.
This is a costume. Be wary of people wearing such costumes.