Keyword spam
My main blog has been receiving a lot of comment spam lately. Annoying, but the upside is that some of the comments are mildly entertaining: they're posted by a spambot that recognizes key words but doesn't know that words can have multiple meanings.
So, for example, an entry of mine from back in 2002 has the title "Phrase dating and the New Wave, which contains the word "dating." So a spambot posted a comment on that entry the other day that said "Is it ok to bring flowers on a first date?"
And several of my entries that contain the word "girls" (referring to young female humans, as in "On Girls, Boys, and IT Careers") get spam comments about "girls sex movie" and such.
And then there was my entry "Writing challenge/exercise: Unamerican," which just got a spam comment that says "Love this blog, love fitness and life, thanks for a good read!"—presumably because of the word "exercise."
And though this isn't quite the same thing, whenever I mention recipes, as in an entry on "Recipe law," I get comment spam pointing me to recipe sites or saying (for example) "I am looking for a lot of different meal ideas. If you are willing to recommand another page I would honestly appreciate it. Thank you!"