I'm sure you have heard, but Google are at it again. This time they are helping with the comment spam problem. By adding a new tag to links that users post on blog comments Google will know not to follow the links. Of course if you implement this then all links posted by users will be affected as far as the PR issue goes but the main reason for posting a link under normal circumstances would be to make the link available to other people, which isn't affected.
The updates are easily made to most web based applications that allow users to post comments or links. With this change being made, we'll have to see how it will affect the amounts of comment spam being posted and also what impact it will have on trackback based spam.
Will you be making this change on user comments / trackbacks?
Since my spam problem is resolved, in my case I believe if I made the change it would have an impact on spam PR that is never posted to the live pages and will also affect legitimate comment links. I'd see no loss towards the spam that doesn't make it through anyway and all other user links would loose out. It may well stop the amount of attempted comment spam messages, but they don't have any impact on resources that I notice. I'm undecided on making this change at the moment.Post ID: 638, posted by jase at 11:01 PM
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