It appears by the Voting policy that two voting systems exist: a four-point and a winner selection.
The four-point system seems flawed because three of the four voting factors [sources, legibility, and conduct] are optional, whereas argument is considered mandatory. So what makes four-point a different voting system than winner selection if 75% of the vote is optional, and yet a secondary flaw: points are still awarded even if a voter opts out of voting on the 3 optionals. And how does a mod know whether the voter intended to opt out of the optionals, or simply did not justify their vote? Yes, both debaters are given the points, so it appears to equal out, but why do they deserve any points at all if the voter opts out of voting?
Either add a column to the voting summary page for the voter to opt out of any of the three optionals, so no points are awarded, or eliminate the optional feature and mandate a justified vote on all four factors. The current system makes no sense at all.
Otherwise, what makes the current four-point any different than winner selection?