[0] http://observer.com/2016/08/wikileaks-reveals-mainstream-med...

I used to try to apply a correctional factor, but I've found it not even worthwhile anymore. I honestly don't know entirely why. I don't know if the news has gotten that much more biased to the point where it almost swamps the signal entirely, or if the combined financial pressures away from expensive real reporting and towards click-bait headlines has removed the signal, or what, but beyond very bare facts they just aren't worth much anymore. It is also possible this has always been the case and I wasn't aware enough to realize it; there's some classic history stories that back that possibility up.

I do know primary sources are getting easier and easier to consult directly. Which could itself also be a reason my opinion of them has plummeted so much in the past 10 years; it was a lot harder to see through media spin and simplification (deliberately for their audience, and accidentally when they in fact don't understand what's going on themselves, see especially science journalism for that) when they were the only source of information.

What is the correct balance of endorsements? Is anything other than 50:50 incorrect?

It won't be reached in practice, but if you make it the policy, you have an argument to take down any bullshit. With 50:50 it's going to be an endless quarrel over who has had enough so far, who is underrepresented and why everything is dominated by two polar opposites with no voice given to people who don't want to belong to either camp.