There's no evidence of hard work in this page. It's a marketing video.

I can make the same claims as them. Worse, projects with catchy colors and no substance are submitted to HN all the time.

Maybe they actually worked hard and developed a good product. But I'll believe it when I see it. HN is a playground for every marketing guy hoping to raise developer hype about his doubtful product. Why should I give anyone the benefit of doubt ?

(And even then, hard work doesn't automatically mean what you do is good or noteworthy.)