Probably better to post in the github issue rather than replying here.
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3 points
seems trivial to check for a login/subscribed etc. then increment up//down votes. why link each vote to an account in public? maybe for mods an account(s) to be banned for botting votes?
1 point
Because then people can vote an unlimited number of times.
There needs to be some sort of identifier
1 point
array votes[post_id, vote]; // for storing in user profile not public but can be hashed if you don’t trust your dba
2 points
Enumerating every user to get the vote count on every single post/comment seems too computationally expensive.
