[drivingmenuts]

No and yes.

It's not asking too much that someone familiarize themself with your app.

It is asking a bit much that they care about it in the same way you do, though. As a dev, their job is to ensure it functions the way you want it to. As sales and marketing, their job is to create and sell the idea that your app will have value.

Anything beyond that is optional and goes beyond what you can reasonably expect to hire someone for. If you find someone willing to go above and beyond, that's great. Encourage it by sharing your idea and enthusiasm for it.

But don't expect it right off the bat.

I've been willing to take jobs because the tech stack was interesting, but the overall market was something I didn't really care about at all (sports).

[buyfromfarm]

what if you have been invited to be a co-founder role? I guess I shouldn't expect developers to have the same passion as I do. I hope the interested co-founder candidate should have some passion about the domain. I feel that it is very difficult for a co-founder to stick with the project if he/she don't agree this project is solving some problem he/she cares about.

[drivingmenuts]

Depends on the type of co-founder, I suppose.

Having been more-or-less a technical co-founder (or maybe a co-co-founder) I found the technical issues fascinating, but ultimately, I wasn't sure if the business model was a good idea or not. So, I stuck to technical issues and kept my mouth shut (or tried to) about anything outside my area.

The one time I had to say something was when the Social Media person suggested what sounded like astroturfing. I was against it then and I will always be against it.