There are others grappling with similar issues as we speak.

I found this bit amusing: "I think we need a rather simple solution, and luckily I think we’re pretty much the right crowd to implement it." It echoes some of the sentiments in the above.

As for me, I'm rather more skeptical. You might be underestimating the extent to which privacy would change the entire motivational structure of the "argument", and overestimating the extent to which people argue in order to establish some sort of truth.