as-of-yet unfound
I'm not sure what 'unfound' means in this context. Maybe "unlocated"? Or something even more on-tone?
Testimony by these users describes the camp as having wooden cabins, being placed at the edge of a lake
Not sure why 'users' is used here instead of 'subjects'. Also, should be an 'and' between 'cabins' and 'being'.
Once contact is made, a sealed cardboard container will appear in the attic of the last building the subject's biological parents lived independently.
The word 'in' is missing in this sentence. I mean, a second 'in'. Also, what happens if the building doesn't have an attic? Like, say, an apartment building?
If an individual other than the subject opens the box
Comma needed. Also in the next sentence, at the same point.
I still love the palmetto bugs.
Depending on the individual's age
Comma, and an 'and' after 'reels'.
I don't feel "elucidating" is the right word; how about "ascertaining"?
In almost every case these individuals will be close to the subject in a geographic sense.
Comma after 'case', and you could save a little long-windedness by saying "will be geographically close to the subject".
Many of the SCP-3776 subjects are impoverished
Comma. Also, the effect isn't universal, but is it statistically significant? I find it odd to mention that many are addicts and then being all, "But it doesn't actually matter."
Foundation attempts to locate a physical location corresponding with the camp have not been successful.
This is kind of repeating information given previously. I'd just roll it into the next sentence.
Told stories to the littler things, the littler kids.
Okay, if there's any one thing I love about this article, it's this right here.
Hmm, and now, reading this interview, I'm starting to wonder if 'users' above wasn't intentional. What an unusual comparison to make, between memories of summer camp nostalgia and addiction! Also I appreciate how the description of mental degradation earlier doesn't quite do justice to what's happening to these people.
I've got to get here.
Just making sure this is not a typo.
I do wonder what they did with the interviewed guy afterward.