The gist of it is, that a fellow Yahoo'er posted a question about what to do with a PC that had run into unsolvable Windows problems, since that user did not have a Windows install disc. Amanda suggested, quite amiably, that the hapless user should simply install Ubuntu Linux, since it looked like they'd need to start over from scratch anyway. Amanda was subsequently rewarded with a warning from Yahoo that her answer was "in violation of our Community Guidelines or Terms of Service.", and they promptly deleted her answer.
http://slated.org/yahoo_censoring_open_source