Free/Libre Open Source Software (FLOSS) proposes an original way to solve the incentive dilemma for the production of information goods, based on von ippel's user-as-innovator principle (1988): as users benefit from innovation, they have incentive to produce it, and as they can expect cumulative innovation on their own proposition, they have incentive to share it. But what is the incentive for producers when they are not users? We discuss this question via a quantitative study of FLOSS projects in "algorithm-based industries". We find that in that case producers hardly participate in such projects.