Smart comment spam is still spam

Now this is a smart comment spam:

I am not sure that I can completely understand your comments. Would you be so kind as to expand on your reasoning a little more before I comment.

I’m not going to link to the site where this originates (or, more accurately, where it points) because I don’t want to encourage or support spam in any way. But you can see who’s doing this here:

It’s smart, of course, because you have to think for a moment before being sure that it’s actually spam. But it’s still spam, as you can see when you go to the site being promoted, and realize it’s a shell site with nothing there but Google AdWords.