It is not recommended to directly offer rewards or incentives to users for upvoting your product on Product Hunt. Instead, focus on engaging with the community genuinely and providing value through your product. Respond to comments, address feedback, and build relationships based on trust. By demonstrating the quality and usefulness of your product, you can naturally encourage users to support and upvote it. Authentic engagement and building trust with the community are more effective in gaining genuine interest and support for your product on Product Hunt.