Yahoo! outs spammers

Even though I see some lawsuits coming, I think it´s a great thing for a search engine to provide as much information as possible to the searchers querying the natural results. Google should do the same thing, no matter how much they want to stay neutral in the public eye. The only question that I have would be if Yahoo! would change the note should the Carbon Neutral website owner decide to be an active advertiser in the search marketing program.
Ever since 1999 I have been using Google and am sometimes asking myself what it would take to make me switch and this kind of extra information and warning could definitely do it for me.
I strongly doubt Google ever going for this, but if they did, it would be an asset for sure.
We have all been spammed and frankly, I myself am sick of it and would like to be alerted of sites famous for blasting me with their eco stuff or whatever else you may get spammed with.
Congratulations Yahoo! for taking a strong and unique step in the right direction.