Lukegao1
创建页面，内容为“ I'm sorry to inform you that StumbleUpon has been discontinued since 2018. The platform has been merged with another discovery platform called Mix. Therefore, you cannot add friends on StumbleUpon anymore. However, you can still connect with people on Mix. Here are the steps to add friends on Mix: 1. Go to the Mix website and sign up for an account. 2. Once you're signed in, click on the "Following" tab in the navigation menu. 3. In the search bar at the to…”