Quick question for any geeks out there.
Here’s a recent comment which was left which had absolutely nothing to do with the post or the other comments:

Wagnerian frees artichoke religions?rebuilding emperors,clone… Thank you!!

Now, there was no embedded link, no URL anywhere, no website listed, and the email address was alphabetical gobbledygook. (I Googled the phrase, and of course it is not a known slogan.) While I am inclined to think of a comment like this as being spam, we normally think of spam as having a purpose. But if there is no link and no website and the comment directs no one to anything at all, is it really spam? If it is, what does that suggest about spam? I can see absolutely no reason for posting random nonsense, unless it is done merely to ascertain whether the site administrator is paying attention. But wouldn’t that require additional monitoring of the site? If these are placed by bots, are bots now intelligent enough to go back and check the blogs to see whether the nonsense comments got through? Why not just post the spam and be done with it?
I’m wondering whether the goal might be not to spam bloggers but simply to annoy them. In whose interest would that be? Vendors of competing blog software are the only people who readily come to mind.
But isn’t that a bit farfetched?
There must be a simple explanation, but I’m not seeing it.
MORE: I just had a thought in a comments below:

It can’t be advertising without an ad. Unless, the urls were stripped out automatically somewhere.
Is there such a thing as crippled or partially disabled spam getting through?

Could that be it? Might it be that this was once “normal” spam, but it was mangled by some ISP’s spam-combatting software? Or are there such things? It seems to me that if they catch spam, they ought to delete it rather than “sanitize” it, but I guess anything’s possible.
AND MORE: Commenter Jim C thinks it may be “cleaned up” spam:

On a more serious note there are filters that many blogging services are running to remove Java and other sctipts to prevent cross site scripting attacks. Perhaps this is an automated CSS virus that has had its payload cleaned by a filter.

That’s the only explanation that makes sense.
If that’s right, the spammers surely know about it, and doubtless they’ll redouble their efforts.
Wouldn’t it be nice to catch one and deprive him of his rights?
UPDATE: I really appreciate the explanations of how these things happen, but commenter Stewart alerted me to something I had’t thought about:

Others have given the likely technical answer. I’d just like to point out that this:
“Wagnerian frees artichoke religions?rebuilding emperors,clone… Thank you!!”
does sound like the synopsis of one wild sci-fi story!

Hilarious! (The only problem is that the story has probably already been written….)