I filter all comments. Occasionally I am amused by the spam. This is an example:
I was getting bore since morning but as soon as I got this link & reached at this blog, I turned into fresh and also joyful too
There was a link attached which I could not delete from the comment so I cut and pasted it here. I know that businesses are commenting to increase the hits to their sites. I don't mind that. I don't have to help them, though.