(no subject)

As I mentioned in the past, I'm getting a lot of spam comments on LiveJournal lately. Some of them don't include any links, and don't advertise anything. I haven't figured out the purpose of these. It may be to make the user seem less suspicious, for administrators checking on the user's activity, after they've been reported for spamming. For example, one user has posted various comments on different journals, including:

"Great, I never knew this, thanks." (on my entry)
"Beneficial info and excellent design you got here! I want to thank you for sharing your ideas"
"Great view I recently hit on your blog and have been reading along. I thought I would leave my..."
"Great work keep it coming, best blog on earth. "
"Hi there, awesome site. I thought the topics you posted on were very interesting ..."
"Keep posting stuff like this i really like it."

and then the odd comment out (but still not including any link)(and oddly, posted in English on a Russian journal),
"The aims of acne treatment are to prevent new spots forming, to improve on acne treatment already ..."