Lol. I keep seeing this and meaning to do a search but just haven't had time of late. On the third day, you should give a hint. If no one gets after a day with the hint then reveal the answer and declare victory. That was my intention with the Caterkiller round. Gave a hint with the answer coming the next day if no one still got it then. Since we are past day three of this round, you could give a hint whenever.