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It would definitely be nice to build up an application layer in order to simplify the experience and to provide individual scoring, open predictions, leaderboards, etc.... There's a lot that could be done.

I don't think double-dipping should be prevented though. A strategy might emerge where a voter wants to vote with a low percentage on one option and a higher percentage on the other. Especially if there are more than 2 choices. That even opens the way to implement something like ranked choice voting.

(Plus, I think it's impossible to block it at the base layer, so trying to block it at the application layer might create an opportunity for cheating.)

Yeah, I remembered about percentages a little while after I commented that. It does make sense to leave it as a potential strategy.

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