Cerasus, I don't think the spammers are so well organised or so thorough as to read every post on the site. But perhaps you're right, so I'll keep my thoughts to myself unless anyone wants to contact me.
More than likely the spammer is just an eedjit sitting in his underpants, in his bedroom. It's not as if his postings are advertising anything, mostly containing just sdfsdfsdf stuff. And the extra effort of needing to change the title of each post to something unrecognisable from the previous post might be just enough to put him off here and go looking for a softer target...