The concept is great, and compared to other companies, i trust duckduckgo more...but, there still a for-profit company (nothing wrong with that)...so how will t

The concept is great, and compared to other companies, i trust duckduckgo more...but, there still a for-profit company (nothing wrong with that)...so how will they sustain this? Maybe i'm not so smart with funding models, but i would feel better if there was some sort of pricing...to make me feel like as a user i'm not the product...am i paranoid for being suspicious?