Yahoo! and Spam • 06.16.08
Yahoo! actively edits spam out of their search results. If someone with whom you are competing is not complying with Yahoo!'s guidelines, you may want to point that out to Yahoo!. There is a chance that Yahoo! will remove your competitor's site if they deem it as spam. Again, most of the time it is recommended that you do not use spam reports unless you are prepared for webmasters to play hardball.