Here’s nother reason not to trust social content silos. I’m sure Twitter can do the same thing but who is going to read the terms of service of these sites to find out?
A team of researchers, led by Adam Kramer at Facebook in Menlo Park, California, was curious to see if this phenomenon would occur online. To find out, they manipulated which posts showed up on the news feeds of more than 600,000 Facebook users. For one week, some users saw fewer posts with negative emotional words than usual, while others saw fewer posts with positive ones.