Why should we trust you?

Sadly, I dont have a perfect answer to this question. If I could adequately answer that, I would have gone to a bank. AFAIK this is how ICOs work. Community put trust on an idea to make it possible. The first ICO ever was like that only, a person had something in mind, other people thought, ok, lets see how you take it further. Your investment depends on your trust level, if you cant develop a feeling of trust on the proposal, its better to let it go. If you feel like, ok, this looks promising enough, I can spare some satoshis for the proposal, then go ahead.
your issue here is that people's standards have increased from the initial ICO's. there aren't many out there that don't already have a product.