Hi! I work on the Microsoft Cognitive Services team, which includes the Bing Web Search APIs in our family.

For feature requests, it would be awesome if you posted them to: https://cognitive.uservoice.com/ (I'm also forwarding your post to Bing).

If you want to get in touch with the team directly about a question/issue, the "Contact Us" widget at the bottom of the Cognitive Services page is the way to go: https://www.microsoft.com/cognitive-services

http://www.bing.com/partners list all the services/APIs/partnership opportunities Bing offers.