this post was submitted on 22 Jun 2023
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Lemmy
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Maybe you could hash the user and post together somehow this way it is hashed but also unique per post. If you only hashed the username then the entirety of the user's voting history would be known if the hash was reverted.
Could be hashed and salted, with a random salt.
The trouble is, then, that it’s harder to disallow users from voting multiple times if the voting user isn’t on the post’s home instance.
Couldn't someone vote multiple times anyway by just having a bunch of different accounts?
That’s always been a problem on Reddit and is on Lemmy now too though