Having been in a few failing businesses I can tell you that marketing and sales are _the_ core reason tech (maybe also non-tech) businesses fail. Fundamentally you can do without code, but you can't do without sales.
I have a lot of respect for sales people and people who can market themselves. One of my favorite videos about this is by a bodybuilder/powerlifter Stan Efferding [1] - he is some sort of marketing savant, with a product that I think is kind of silly, but he can market the hell out of it.
"I can tell you that marketing and sales are _the_ core reason tech (maybe also non-tech) businesses fail."
Could not agree more, especially underestimated by the vast majority of devs turned entrepreneur. But you don't have to be that statistic - get a complimentary cofounder/partner/outsource if it's not your passion.
Yeah the product is kinda dumb (or not, what do I know), but his attitude and mindset is spot on. I've met a lot of smart people with great ideas but they don't have the growth mindset and the perfect combination of both irrational optimism combined with realism, if that makes sense.