It's amazing to me that nobody has brought this up and I have to be the one to say it.
On /g/ over the span of several years there was a poster who would talk about web security and how easily 4chan can be hacked.
His use of language and post style was obvious. I would peg him as a North/Slavic european (think estonian) or a SEA singaporean/filipino. Maybe that is erroneous. Maybe it was cover. Maybe he was Greek. Maybe the pecularities indicate some strange Indian in America with very niche thought patterns. I don't fucking know.
What I do remember is on 4chan /g/ we would occasionally get a guy talking about 4chan security and how easily hacked the site is. As time went on a poster began talking about having inside access, access to mods, etc.
I specifically remember someone talking about .php and sql "injection" exploits, but one particular instance I recall an anon posting about file uploads insecurities.
/g/ would, in the span of a month, get threads about server security and some posts would relate down to 4chan in particular.
I'm not wont to troll archives for specific proof, I'm also not one to hallucinate (even on 8 hits of 40mcg LSD - trying as hard as I could) or lie.
Anyways, what I do know is on /g/ this poster would make his posts. The regular replies would be calling it bullshit or saying he wont/cant do anything. The poster would get emotional and respond with just wait and see your precious shithole drown (not verbatim) and things of that nature.
I don't doubt the exploit hacker posted on /g/.
Curious if anyone here can corroborate what I'm saying.