Reason number 16: Comment spam

Minutes after the last post, I got this comment.

You have a great blog here! I have a scented candle site. You can find everything about scented candle as well as candle supplies, gel candles, jar candles, and how to make your own candles. You'll find it very informative. Check it out when you can :)

There are so many things wrong here. It is deeply irrelevant and - what's worse - there is some software that thinks a post in praise of misanthropy equates with the kind of people who buy scented candles. Artificial intelligence has a hell of a long way to go.