If I were to guess what is going on, I would say it is this:
Scientist submits paper which says we got a bunch of human DNA from bigfoots.
Journal #1 says: it's from us humans unless you can prove otherwise
Scientist says: people told me it came from bigfoot.
Journal #1 says: yeah right.
Journal #2 Hello. How do we know this came from bigfoot?
_____________________________[this is The Line, which Scientist now crosses, into KnowerKnowerLand]
KnowerScientist says: ummmm, er, I have seen them myself. yeah, that's it, I myself have seen a bigfoot.
Journal #2 says: really?
KS: Yes, that's it, I have seen one, yeah, that's it, I saw one.
Journal #2: ah, I'm sure you did, but one sighting could be a mistake or a hallucination, and anyway that doesn't affect the validity of the data you have here.
Journal #3: hello. I'm sure you are a good and honest person but we just don't know about these other people who say it came from bigfoot.
KS: I have seen them many times myself in a secret location in Oklahoma, and we got samples from them.
Journal #3 says: REALLY?! would you sign an affidavit?
KS: well, ah, YES, yeah, that's it, yes, I'll sign.
Journal #3 says: okay, but that really isn't PROOF they aren't regular everyday modern humans.
KS: well okay, then.......ah...........okay, I have one or two clear pictures.
Journal #3 says: REALLY?! could we see them?
KS: well, ah, you see, well, ah,... NDA!! yeah, that's it, I am bound by an NDA not to show them.
Journal #4 says: hello, what is this?
KS: this is a clear picture of the bigfoot, from the back, from which we got the samples.
Journal #4: doesn't this belong to Melissa Hovey?
Journal #5: hello, what does this have to do with our wildlife conservation theme?
KS: well, these animals need protection and we are starting a grass roots campaign to do so, see we already have 255 members, and they will all subscribe to your journal if you print this.
Journal #5: you're joking, right?
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p.