/a/ in need of some dire help

Dear /prog/enitors.

We need your help.

Some idiot script kiddie has written a script that spams /a/ with the same image rotated by 90 degrees.  at the moment it is fucking the mods over because the content is changing therefore they cant ban by ip.

What im asking is for you guys to come up with a way to combat this spam.  Cheers

Store the hashes of posted images in a table, along with an integer that records how many times the image has been posted. In the post script, if the image has been posted too many times already, abort.

lol futaba