This is an admirable project but realistically speaking, six weeks after it's no longer being visited every day some 4channer is going to hike out, break it with a hammer, and then draw dicks on it.
Serious reply: the only way to permanently protect man and man's works from man is a benevolent but forceful, adaptable in means but rigid in purpose, army of Von Neumann AI killbots.
Funnily enough, I think the underlying key to longevity of the message is simply the art of the meme. The very message "This is not a place of honor
.." Has become endemic in many online cultures, and I've talked to others in academic fields about it many times.
The challenge of fulfilling the nerd snipe problem of coming up with a message that can last 10k years may end up being the way in which this idea sticks around.