They always have to change the challenges, don't they? At least their first challenge is tougher, it seems...

The problem is, the sheer nature of the challenge (and a large percentage of the challengers) is such that cheating is probably more common than really doing it. (And don't get me started on how Eliza is a piss-poor excuse for social engineering.)

Now, I'm not saying I could breeze through it without doing some research, but the whole Zebulun challenge seems geared towards eye-candy (in the spartan techno manner) and ego-boosting. ("Let's see how many people can go through all these hoops by using google effectively!") Then the challengers have a vested interest in defending the system, because otherwise it invalidates their own built-up-sense of self-worth by winning levels.

Now, if they only gave each new user a seed value, and created a slightly different variant of each challenge for that user (In other words, no two people could enter the exact same answer to progress) it would be far far better.