Take note of the accounts pushing this Q 'new' post as this clearly looks like a simple disinformation ploy between a number of users.
The trip code is different thus making the post fake. Simple.
Don't fall for this bullshit. Take note of the accounts refusing to admit this post isn't genuine.
Sorry, I'm not clear on specifics, 8Kun isn't exactly a website I frequent often. From what I can gather from the UI and consensus, you can require a special password in order to post to a certain board, but this doesn't preclude admins and site mods from posting to your board.