549. Very briefly: Unexpected comment spam

I get about 2-3 spam comments on my blog per day. Typically they advertise money making schemes, email marketing schemes etc., and look something like this:

This site was... how do I say it? Relevant!! Finally I have found something that helped me. Kudos! Also visit my web site: minecraft 1.0

Today I got an odd one though and I'll post it here even though it kind of works in their favour:

 Anonymous has left a new comment on your post "341. Upgrading/installing BankID on 64 bit linux":

That was enjoyable to read, thanks for posting it.

My site: Bing (www.bing.com) 

I presume that spammers don't work for free, so someone must be paying them. Is Microsoft hiring less-than-reputable web marketing companies to do their bidding?