The biggest “however” around UGC is often the scale required to keep up with moderation. You’re already almost certainly moderating — most organizations, even with a smaller community, are using some form of moderation. But as the user base grows, the scale of moderation can become immense. As the scale becomes that massive, you confront a major problem: how do you keep the community safe and in keeping with your community guidelines without
sacrificing speed?

If someone posts a comment or photo to your community, they want to see it show up immediately. This give-and-take between security and speed for large-scale communities can be very challenging to navigate but has a significant impact on users’ engagement.