Why do they bother? Especially if their posts/replies won't ever show up? There's one very persistent (in the same was a bee bangs its head against the window - ie futile and stupid looking) spammer who keeps on trying to spam here. They've provided sufficient material for spam bayes to block them automatically, so that will be integrated shortly, meaning that no one will see their pointless spams.

If you're the spammer spamming and read this: GIVE UP, FIND SOMEWHERE ELSE.