You're reinforcing this point by with even "stronger opinions" but you're avoiding the fundamental issue:

"There's a difference between a person having an unconventional idea, e.g. for a business, and an unconventional theory, which they claim has a sound scientific basis."

Unlike a business proposal, no degree of bizarre circumstance or incredible luck can transform the underlying operation of the brain.

Ironically, you're using a human bias (pushing an analogy outside it's original domain) to argue about human bias. I'm pretty sure 99% of folks involved in this debate are well aware behavioural psychology and the like, so you can spare the "fuck you up" histrionics.