The document discusses 50 ways to foul up online communities. It notes that most communities fail and lists reasons for failure like lack of governance, transparency, open membership, visibility and accountability. It also warns against focusing too much on technology, not listening to users, imposing changes without buy-in, using wrong tools, having a complicated interface, poor branding and scope, not modeling desired behaviors, too few participants, changing tools frequently and lack of senior support. The overall message is that online communities require careful planning, openness, accountability and alignment with user needs to avoid common pitfalls that can lead to failure.