Someone wrote a poll bot last year. Something like that could be turned into a pay service.

Thinking about ways nostr posts and clients could support this. Interactions need to originate from a post. Ideally UX should make it seamless instead of rendering a bunch of answer responses from each participant. The easy way is to iframe a service outside of nostr such that responses aren't signed posts. That affords some semblance of privacy but also allows polls to be manipulated. So we kind of need blinded responses where tally can be ascertained without conveying who chose what, while probably only one response per participant

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