Would you be interested in an easier way to pay people for feedback?

I don't think I am good at finding a sweet spot for lot of things people suffering from disabilities or other problems go through whenever I design build/design something. Collecting feedback is not an easy feat. I would love to have a chat with a blind person about my designs and ideas but often have no less intrusive and easy way to do that.

There is no easy way to pay for feedback as well. Asking people for their PayPal or something similar doesn't cut it online.

For the second problem, what do you think of something that will let you give someone money by generating a small username tip.

Example - You made a post on reddit and someone with username hn-kun replied and gave you feedback, you want to give him money so what you can do is create a tip with a reddit username hn-kun and send him a link. He can transfer the money into his bank by oauth or other flows to verify himself instantly.

He doesn't need to register or you have to ask him for something like his PayPal.

I am not sure about the first problem. Any ideas or existing services?