Board Thread:Challenge Threads/@comment-32549051-20171025081441/@comment-30967537-20180125183315

Or how about "BACK OFF!" or "IF YOU CAN READ THIS YOU'RE TOO CLOSE!" though they would be a challenge because of the reverse letters!

But you're right, it is rather a waste of layers, "NICK" took 6 layers as I needed 3 for the N, fortunately the other letters are all top-bottom reversible.