what if the down-trend is as short lived as that initial spike was? nothing has been proven wrong yet (based on your own argument, in fact.) the data isn't "better" yet.
I'm not sure what you're saying. StatsCounter (the source of the data) reported that Bing was briefly a more popular referral than Yahoo, but that the trend has now reversed. If you don't trust the June 4th data, I can't see how you can then accept the June 6th/7th data. The time span over each day is exactly the same.
The point is that the one day they were above yahoo is also the one day they launched, and got everyone trying it for the first time and tons of launch-day media coverage. The number could be 100% accurate, it still doesn't mean much.
This can be summarized as "New search engine gets spike as people try it out of curiosity" -- I'd be surprised if there wasn't a temporary jump in users around launch time.
Type "linux" into Google and you get good sensible answers.
Type "linux" into Bing and you get something obviously tainted by the marketing department.
Microsoft can't hope to win with this attitude. Nobody is going to use a search engine which can't be trusted.
I'm not sure that's the case. Using the "blind comparison" site (linked earlier) I can't immediately distinguish "something obviously tainted by the marketing department"
Well look at the opposite side of the coin, what if Google researchers do evaluate Bing results and don't find them to be inferior. Google internal documents have been leaked before...
... I think it's better to just leave that Pandora's Box unopened and let your search results and positive image speak for itself.
1) Make a dramatic generalization from obviously-inadequate data. 2) Write a followup when better data proves it wrong.