If you really were getting 2 points per search I'd do it, but I just tried it out and it doesn't work that way, you only get points by taking advantage of their offers which are similar to Dropbox's free storage promos and WoW quests:
How do I earn credits?
You earn credits by taking advantage of offers that may include searching or exploring features of Bing. Offers are found in the Rewards credit counter located in the top right of the header on Bing.
And this buried a bit deeper: Search and earn. Earn 1 credit per 5 Bing searches up to 8 a day until Apr 30.
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If you really were getting 2 points per search I'd do it, but I just tried it out and it doesn't work that way, you only get points by taking advantage of their offers which are similar to Dropbox's free storage promos and WoW quests: How do I earn credits? You earn credits by taking advantage of offers that may include searching or exploring features of Bing. Offers are found in the Rewards credit counter located in the top right of the header on Bing.
And this buried a bit deeper: Search and earn. Earn 1 credit per 5 Bing searches up to 8 a day until Apr 30.