USA TODAY - Facebook researchers conducted dozens of in-depth interviews and in-home visits with 18 real people from one city who they'd identified as vulnerable users with low digital literacy skills. The study determined that the upsetting posts that permeated these users' feeds caused them to disconnect from Facebook for long periods and exacerbated the hardships they were already experiencing. They found that algorithms harmed users with low-tech skills with repeated disturbing content. Some users did not understand how content came to appear in their feeds or how to control it. These users were often older, people of color, lower-educated, and with lower socioeconomic status.