Puffpaw, a new startup, has raised $6 million from VCs to develop a 'vape-to-earn' protocol that uses crypto incentives to encourage users to reduce nicotine consumption. The concept, which rewards users with tokens for vaping, has sparked significant debate. Critics argue that the idea is counterintuitive and question the efficacy of such incentives. Some investors, including an angel investor, believe that the approach could create positive externalities by incentivizing healthier behavior. The startup's funding has drawn comparisons to previous studies funded by Juul, a vaping company, which have been scrutinized for potential bias.