Yeah come on OP, we’re getting UPSET! 
The reason was already spoiled in the IMHO poll thread.
The local Baptist Church is sponsoring a “Block” party on August 15. The signs were created to spur curiosity and make people ask questions. It worked.
So she was saying, “Here’s your sign!” to all of us.
Wow, such a letdown.
I read on topix, that the people at the 1st Baptist Church are trying to get everyone they can get into their church on that date.
I still think she’s a spy. Shoot her. Then shoot Cinebar!