The social networking app WeChat had a test run of its new feature, the “red envelope photo”, on Jan 26. It automatically *blurred photos that users upload to their Moments page. Friends have to pay to view the original image. WeChat closed that function hours later, but concerns over spreading *obscene photos arose among its 650 million active users. This new feature is expected to come back during the Chinese New Year’s Eve, Tencent said in a statement.