No, we are transparent about it. https://brave.com/brave-rewards https://brave.com/transparency and premium products such as VPN, Talk, more to come.

EDIT: some of you think we should do only a browser, but we also have a search engine now (https://search.brave.com/). We're going big across privacy and user-agent models that fit together well and provide our users with value in the form of products, also in revenue shares including >= what we make on any opt-in attention economics. Think big, avoid pigeonholing us as some of you did and still do Mozilla. My advice!