If people ever talk or behave about something as if it is the criteria for your dreams or success, just run away from the crowd.
This is basically how I started to feel about Product Hunt
Everybody behaves like Product Hunt is the real indicator if you have a product-market-fit or even worse if your product or company will be successful or not.
If you get lots of upvotes, feedback and interest it is great. However, it does not show that your idea or product will be successful either.