At first glance, your product feels unrelated to this. It seems like a Stack Overflow replacement that's worse for posterity (read: googlers) because chats are private. It also feels like a side-gig for open source developers, asking them to basically freelance to fund their open source projects, which I don't think is how that should work.
I think you'd have more luck as a platform for paid support licenses for open source software. Bootstrapping a support license program is a Big Deal for independent open source developers who don't want more administrative work. But this feels like a miss on that front. Happy to confer more.
> Minus server costs and wages, all of the money processed through Immutable Coffee will go directly back to the developers and experts answering questions for the community.
You might want to look into forming a nonprofit, as this is almost exactly what it is (minus ownership stakes). If you're a nonprofit people don't have to trust sentences like this, as it's baked into your existence.