I don’t know if you are aware that blogs get spam too. I have a plug-in on ours that catches almost all of it. Moderation of course gets the rest. Some of them are obscene, but this one caught my eye:
You know so many interesting infomation. You might be very wise. I like such people. Don’t top writing.
A very discerning spammer! My sentiments exactly! I don’t think I can top that one! (I probably could spell it better, though…)