True, except you don’t know how many people didn’t vote (i.e. we don’t keep track of that : a comment at 0 could as well have been read and voted as “0” by 0, 1, 10 or a hundred people and is the default state anyway.)(We similarly can’t know if a comment is controversial, that is, how many upvotes and downvotes went into the aggregated score).
The system does keep track of how everyone voted, though; it needs to do that in order to render the thumbs up/down buttons as green or gray. wedrifid is right though; using suitable compression, you might be able to get away with less than two bits (in aggregate).
True, except you don’t know how many people didn’t vote (i.e. we don’t keep track of that : a comment at 0 could as well have been read and voted as “0” by 0, 1, 10 or a hundred people and is the default state anyway.)(We similarly can’t know if a comment is controversial, that is, how many upvotes and downvotes went into the aggregated score).
The system does keep track of how everyone voted, though; it needs to do that in order to render the thumbs up/down buttons as green or gray. wedrifid is right though; using suitable compression, you might be able to get away with less than two bits (in aggregate).