You can't effectively ban the collection. Bing needs to get your search query to be able to answer it. You can muck around retention and what kind of processing

You can't effectively ban the collection. Bing needs to get your search query to be able to answer it. You can muck around retention and what kind of processing can be done... But this approach seems to be simpler and more robust. Since most of the nefarious tracking is for ads targeting, forbid using sensitive data for ads targeting and you've outlawed most of the worst thing. And adding another layer of processing or even transferring the data between separate entities shouldn't work around such a regulation either. Now all that's left are the small matters of wording and enforcing the law...