An idea for an alternative voting system: Changed Opinion.
This is taken from how some live debates are handled, specifically from an article Tejretics
shared. Judges cast ballots only reflecting the strength of their opinion before and after the debate. Moving from agreed/disagreed with to neutral (or neutral to agreed/disagreed) would say be worth 1 point, and from agreed to disagreed (and vice versa) would be worth 3? (if you want to collect meta data, maybe an option for strongly agreed/disagreed, but I would not grant extra points).
I view this as something which would have only minimal moderation. And due to the risk of no voters beginning in the position of agreed to certain claims, no ELO impact.