Ask HN: 150+ signups, 0 paid ones – should I move on or keep building?

What's the demand and the competition? I'd reckon that people can generate garbage ("content") easily enough on their own with LLMs.

As for AI startups generally: please get rid of Google/Facebook/etc. login mandates, and, preferably, get rid of mandatory registrations altogether for demo purposes. I don't know whether there are any reliable statistics on this matter, but I'd argue that the presumed retention due to mandating registrations may prevent a larger user base from emerging.

Honest feedback: that url (not the website content, the domain name) looks like a scam and not something I’d trust with my payment data. Buy a real domain.

What's the pitch for this service? Why would I use it?

Fail fast is good advice but not if you don't understand why you failed. Try to get information from your current users on why they aren't willing to pay for your service. Cycle on that and update your product to get a better understanding of what you need to produce as a product that people are willing to pay for. If you can learn from every effort then you can eventually get a winning product.

Also, understand that a product is not a business. A business is the supporting organization that produces the product. Get that going before you move on to something else.