That's what Slashdot has had for comments for as long as I remember (+funny, insightful, etc.). You can tweak your settings for how those traits are projected t

That's what Slashdot has had for comments for as long as I remember (+funny, insightful, etc.). You can tweak your settings for how those traits are projected to a one-dimensional number (e.g. making "funny" more or less valuable).