[Disclaimer : I know Batch's founder, but this comment will try to be very objective]

Allow me to disagree. Product Hunt is a platform that lets users vote for the best products. Asking for upvotes is wrong, because the people you ask feel obligated to do it. When you let people know you're on Product Hunt, they have the choice to go upvote or not. If it's a good product, they will go and upvote it. But this is the essence of Product Hunt. Filter good products and make other users aware of good products.