I'm personally uncomfortable with endorsing another voting system that functions just like karma but with a different name. Having more than one set of numbers that can fluctuate from positive to negative and are differentiated in name alone sounds like a headache, as well as an interface that would scare me away were I not already familiar with the site.
Instead, I propose simple "I Agree" and "I Disagree" buttons. Rather than just tallying the amount of votes for either, it should simply attach one's name to the post via a pulldown tab, just like hiding and exposing child tabs in the comments section. Ideally the lists of those who agree or disagree, as well as how many votes are for either, would not be revealed until one clicked to reveal it. Or possibly make it so that one would have to vote before being able to see the results. Hopefully that would prevent people from being primed to agree with the majority (or being overly contrary).
This would reveal which discussions are actually contentious versus which are being supported by a vocal minority. It could also function as an all-purpose karma-neutral voting system.
Some possible problems: While I want to know who agrees with what, and from a Bayesian perspective this is going to help me be more accurate, I'm fearful that I would be too inclined to agree with prominent posters. I may be unable to discern whether I truly agree with something or am inclined to agree because I see that Eliezer supports an argument. Handled incorrectly it could turn into an in-group out-group situation.
edit: I forgot to include the purpose of having a list of names instead of an anonymous number. I want to know who's judgement I am relying on in matters that I don't have time to do research myself. Also, should I disagree, knowing who I am refuting would help to motivate me. Knowing that I am arguing with a practicing rationalist instead of an anonymous number helps encourage me to construct better arguments.




"Playing devils advocate" is the non-insidious way to describe this tactic when it's done in good faith, presumably with the other party being aware that one is not defending their true position or attacking those they necessarily think are false.
"I was just trying to make you think" definitely sets off alarms of back-pedaling and status dismissal. But, I've just as often heard "playing devils advocate" used for the same back-pedaling purpose. Though "playing devil's advocate" seems to be used in bad faith more often than "just trying to make you think" when someone doesn't care whether what they say is true or not. Sometimes it can be disguised as trying to help someone by training their ability to refute arguments. This can lead to the Advocate trying to "win" the argument with false beliefs and then updating the other party toward falsity as a sort of dominance. Or they can bail out with their status intact if it looks like they can't win. Kind of like claiming that what has become a fight is actually only sparring once it's gotten too intense. But only because they intentionally didn't commit to either fighting or sparring but were instead gauging their ability to win, and without realizing it. In this way they can be sure to never lose an argument. I did this sometimes when I was younger, before I knew better. Coming out of the argument with my status intact was a higher priority than coming closer to the truth.
Trolls who would benefit by claiming to be "playing devil's advocate" instead of "just trying to make you think", will. Making a good faith effort and Intentionality are everything for this.