This document discusses some of the pitfalls that popular open source projects may face as they grow in popularity. It notes that as projects gain more users and developers, they also become bigger targets for troublemakers like hackers, spammers, trolls, and people with big egos. It provides tips for project maintainers on how to address security issues openly or secretly, prevent spam, deal with trolls, handle ego clashes, keep the community united, and use criticism constructively. The overall message is that the popularity of a project can attract both positive and negative elements that require vigilance and leadership to manage effectively.