I posted to the CNET financial message boards on Yahoo and got this response:
http://finance.yahoo.com/q/mb?s=CNET
==== Re: CNet supporting spammers NOT* *Folks,
We're aware of the abuse, and are shutting down the URLs as we learn of them. We are NOT supporting spammers or phishers.
Stephen Howard-Sarin VP, ZDNet.com ===