Mostly, the spam comments are pretty standard - lengthy bits of non-english peppered liberally with porn links, Every once in a while, they seem so benign that it makes me even more paranoid. Like this one:
Amiable brief and this enter helped me alot in my college assignement. Thank you on your information.
That appeared on one of my old Floyd reviews. No links, no nothing. Just broken english and an insane grin. I especially like being thanked on my information.
This one was a little more 'on': "You need debt elimination." (Did include link to a site that promised to do just that). Of course, I do need debt elimination. How did they know?