What Kind of Spam is This? Testing Blog Comment Limits

"I believe the intention is to be whitelisted on the spam list. You could expect to receive spam from the same IP within a few weeks.

I, too, receive spam like this on a regular basis. It is rather frustrating, as it is confusing my Naive Bayes spam classifier: the text of the message itself is not spam."

"I receive many similar comments on my blog, is the Site field of comments filled with external sites (of spammers)?

That's probably a way to let some visitors click on their site."