This is from today: From http://googlewebmastercentral.blogspot.com/2009/11/hard-facts-about-comment-spam.html Just what I thought...
That's what happened when link spammer abused. What will be next link building that will be devalued when abuse happened again?
This should only effect the real spammers, which is good, they are annoying. If you(speaking to all) leave a legit comment and not too many a day for one webpage or site, i don't see how it would be singled out. Especially if you practive good SEO by gaining a variety of different types of backlinks, not just from comments.
No effect to normal comments, I'm sure this could be happend and difficult to understand, but Google have to re check the volume and quantities of lonks comments