KWAME AMOH, would you like to purchase a chicken?

I get hundreds of thousands of spam comments on my blogs. Most are blocked by my own invention that validates user credentials against a good spam database. Sometimes one slips through.

A website from Poland started hitting all of my sites hard (now it is blocked) but before it did, I got several spam comments posted with the phrase:

KWAME AMOH, would you like to purchase a chicken?

Who is this person and why is he asking me if I want to buy a chicken? If this is spam, what is the point? I understand that he is just trying to register so he can leave more spam, but how is this message going to improve his odds?