As seen on Webmaster world, opinion ranged from, "Publisher is under-reporting impressions and clicks by about 40% for the last two days. Our earnings have dropped about 60%. Anybody else seeing this? " to " Yeah, we're down 90% now, compared to last Saturday. Must be the end, or else Yahoo has lost alot of money the last four days!"
One advertiser Gautam even considered moving to adbrite after suffering losses. Initially he made upto 2k a month and now makes $62.
Poem of Quotes, one user said that on contacting Yahoo! About the problem, they even said there were no engineers during the weekend to rectify the problem.
But truly there has been no report whatsoever from Yahoo.