While exploring your ideas you obviously have no room for counterproductive feedback. When you've properly investigated and tweaked the params to the point you are reasonably comfortable something might work then you would want a tool that looks to debunk the idea.
Here is the business plan I made up for your product.
1 - You have people post their ideas.
2 - If they evaluate positively (everything currently does which is bad)...
2.1 - ...they can sign up for a fee. This is to assure their ideas remain confidential. Free isn't trust worthy. I do not trust you with my ideas nor should anyone else. 3 tiers that buy a different level of trust. If they buy the enterprise version you send them a signed NDA on paper.
2.2.0 - ...they can give permission to post the idea on your website for the world to see.
2.2.1 - They leave some contact info,
2.2.2 - You solicit donations on there behalf.
2.2.3 - Someone "steals" the idea and builds a successful business.
2.2.4 - After earning their first $100 million they make a 1000 dollar donation.
2.2.5 - You keep some for yourself and attempt to reach the person who wrote the prompt so that they can get $100 too!
2.3 - If someone likes an idea or is terrified by how disruptive it could be they can pay you to have it removed from public view.
2.3.f - If you want to be truly sinister about it put the removed ideas behind a membership paywall. (could make it available there a year later)
3 - have AI generate business plans too.
4 - Feed the earnings into the investor bot.
5 - World domination and/or go into hiding.
I also had some thoughts about personal context. It seems age, net worth, resume, skills, hobbies and software projects say a lot about the idea and its possible success. A tool sharing app would have much greater potential if you've been a carpenter for the last 30 years but it isn't the best background for fintech.
I'm also curious what throwing [small] money at some silly idea could accomplish. Things like auto-vibe-code some demo app or generate videos explaining the product to cofounders/investors/employees/customers/resellers. If the personal clothing brand generator demo makes everyone want the Stallman clothing line you have rigorous validation.