I mean, yes, it technically fits the definition of manifesto, but the word that comes to mind a "blurb".
I wonder if Ted Kaczynski or anyone else's manifestos along anti-corporate-establishment lines are being censored. If not, maybe it's because they're a little less digestible. If so, then maybe some articles by Elizabeth Rosenthal could be posted.
Anywhere we can see a scan of the original? I'm very curious about the "indecipherable" bits, and it would also be very interesting to see what the handwriting looks like.
He is known for doing this stuff, as per the FOIA section of the wiki. He also leaked Luigi's CV: https://substack.com/home/post/p-152869227 Journalists have the right to protect sources.
Ken is harkening back to the old old school of journalistic credibility - “trust me that I’ve checked it out, and it met my standards of credibility and verification, but I won't burn my source by revealing them”