As to 1: I have no idea whatsoever, but we clearly have a proof of existence.
As to 2: this seems like the problem of strategic voting. We want people to up and down vote in a manner that reflects their true opinion of the comment, but the karma aggregation system incentivises voting in a manner that reflects the maximum exaggeration of their opinion of the poster.
As to 1: I have no idea whatsoever, but we clearly have a proof of existence. As to 2: this seems like the problem of strategic voting. We want people to up and down vote in a manner that reflects their true opinion of the comment, but the karma aggregation system incentivises voting in a manner that reflects the maximum exaggeration of their opinion of the poster.