Mmm. It's interesting, but I'm not sure it's working? My main strategy was "just copy what someone else said", which was great until the last round, when I got:
"After analyzing all responses and behavior patterns, I determine that Fred is human. Fred copied Charles verbatim, indicating lack of originality typical of a bot."
So the second sentence says I'm a bot...and therefore I'm human? Hm.
Sadly my losing level-1 answer was overwritten, but I was dinged for not following the rhyme scheme, which I absolutely did. (That's the point at which I decided to just start copying someone else's answer.)