Speaking as someone who is actively working on setting up an online wallet. I can understand your concerns. It's also our biggest challenge (to build trust)
As someone who is obviously against the idea. What would make you feel more comfortable with the idea?
Actions we are going to take:
1. Make it clear whose behind it.
2. Clarify how our system works and what safe guards are in place
3. How we plan on making money
For the No.1:
1) Be a U.S. citizen
2) Register a company in U.S.
3) Tell people your exactly background information.
4) Post 1 of your pictures is good for building trust.
conclusion: transfer your personal creditability to your service.
Of course, you have to do a good job on 2. and 3.