(FILES) In this file photo taken on August 13, 2019 employees walk past a lighted Twitter log as they leave the company's headquarters in San Francisco. - Twitter on November 21, 2019, began letting users "hide" tweeted replies that could be seen as abusive or harassing in the latest effort by the online platform to create a more welcoming environment. The move is part of an effort to help users "feel safe and comfortable while talking on Twitter," head of product management Suzanne Xie said in a statement announcing the feature. (Photo by Glenn CHAPMAN / AFP)