I am politely asking that before I start making some suggestions on how you could go about doing that..
I note you used the words:
Invalidate it??? In what way did they do that? Were they rude or insensitive? (If so why would you entertain their opinions?) Or would just asking questions about it and/or trying to investigate it, in some way invalidate it? I'm intrigued as to the mechanism by which that happens.
Wouldn't it be in your interest (and the readers) if the known phenomena, like out-of-focus lit up dust particles (that applies to both camera and eye by the way), fireflies, sparks from a fire, etc were discussed and perhaps ruled out, and that some evidence of it be collected and presented?
Just FTR, I've spent significant periods living with indigenous folk of similar cultures and beliefs... more about that later as necessary - let's just say you might be surprised as to what direction I am coming from..
After 15 years of thinking about it, researching, exploring all possible explanations, I've concluded that the orbs are not cryptids, like fireflies, nothing like that has been identified as part of the jungle flora or fauna. Could they be some sort of chemical bioluminescence? I would think that if that were the case an island biologist would have identified them as such, the same if it was some sort of luminous gas. It's pitch black out in the jungle at night, so I don't think the orbs are light refraction, and they're generally seen in groups, anywhere from a dozen to two dozen or more. I have friends in Hawaii who see orbs as well, without the use of a camera, so what ever they are, they aren't geographically isolated. And I have a niece in Wisconsin who sees them all the time, both day & night. My family has seen them in our house, as well, both moving & stationary, both during the day and at night, so if it's light refraction, is it likely that we would all see the same thing and its movement from different places in the room, say, moving from left to right about 4 feet off the floor? All of the observations I refer to were seen with the naked eye, not a camera.
I don't think I ever claimed to know what the orbs were/are, just that they exist, thousands of people see/have seen them. I'm not going to ignore what I've seen with my own eyes, but I'm not claiming I know what they are either. If someone has a likely theory that takes into account the differences in geographic locations & levels of light, etc., I'd love to hear it.