Ok, I will bite, if you truly don't know why then maybe this will help. There are no stupid ideas, only different opinions and viewpoints so you may feel it is a stupid idea, in your opinion, but it may be the best thing since sliced bread to the poster. You might explain why you feel it is not a great idea but to call it stupid is not furthering the discussion. IMO
This is not meant to admonish just to inform.