[grzm]

"[M]isinformation spreads more rapidly with less likelihood of being countered than accurate information. Facebook and others have done studies to show that."

Ouch. As much as I'd like to imagine this isn't the case, my gut tells me it's true.

If you happen to have references to such studies at hand, would you mind providing them? If not, no big deal. I'm sure I can find them with a little searching.

"Reputation and moderation systems should probably be designed with that as an assumption built-in."

I agree. There are two pieces to this as well: (a) discouraging undesirable behavior and (b) encouraging desirable behavior. Reputation systems are harder to implement as well if you allow for anonymous behavior, which I think there is a place for. What does reputation mean if it's not something that sticks with an individual?

[nickpsecurity]

Here is Facebook's that I still have from earlier conversation:

http://www.iflscience.com/technology/facebook-echo-chambers-...

Far as your Googling, cross-reference the words study or empirical with "echo chamber," "filter bubble," and "misinformation." That should get you best results.

[grzm]

Thanks!