WTF is going on with "Courtney Gidts" comment spam?

I allow comments on my other blog, Mad Professor, but I have set it up so that I get to review each comment before I release it to be posted. In the last few months, I've been getting some weird comments like this:

IP Address: 66.81.23.78

Name: Courtney Gidts

Email Address: eastcoast@microsoft.com

URL:

Comments:

I've managed to save up roughly $16804 in my bank account, but I'm not sure if I should buy a house or not. Do you think the market is stable or do you think that home prices will decrease by a lot?

Note that there's no URL, so how can this be profitable for the spammer? Is it part of a larger scheme? The number (in this case, $16804) is different each time. Is it a code number used by spies?

I googled "Do you think the market is stable or do you think that home prices will decrease by a lot?" and it returned 13,300 results. Most of them were from sites that allowed these weird comments to go through (example). I also found that Peter Kaminski has been getting the same type of comments and is just as mystified as I am. What's going on?

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