I recently turned off my custom antispam/filter software just to "see"... the email catch all box was getting 200 an hour. I just love people that just say "press the delete key".
What's "interesting" is that all our other email addresses get a "reasonable" amount of spam. But this particular box was the one that was used to signup for sponsor programs, for content access etc.
What I find hilarious though is that the spammers think we're actually going to buy memberships/products that we also promote and can get for free.
Now, I use custom email addresses for each sponsor.