There are to many comment spams coming in to my mailbox recently, some of them are marked as spam by CS antispam rules, but... I just don't want them. I believe I am not the only one who have problem with this. There are many of us who have enabled their anonymous comment feature of their blog, and the spam can also come in from contact feature of the CS. So I am forced to implement captcha to the site even tough I know captcha will reduce the visitors user experience a little bit.
So.. geeks... if you have enabled it, please test your anonymous comment feature especially for the theme or skins you are using. If you have not enabled it, now with captcha you may want to do it and get more feedback and response from anonymous visitors without the risk of comment spams, and you may still moderate the comment before publish it.