How you know your site is full of spam ...
When you get several hundred search engine hits for things like “animal sex”, you know someone has been spamming your site. What I can’t figure out is why the austin_blog channel became the place to spam. Weird.
(I’ve improved my spam deleter so that now I can blow away all posts that refer to a URL. It’ll also silently ignore any attempts to refer to the same URL after that.)