Adding a simple captcha to the post forms will stop remote auto posts.
I would also say that some IP blacklisting might help reduce these posts as well - it's simple enough to find out with cgi.HTTP_REFERER
I really enjoy viewing the content here. It's a shame spammers can't be more accountable for their actions.
In the meantime, here's a nice long hair vid for you all:
video.megarotic.com/?v=4BAQNYVW
All the best from
"The Foo"