Subcultures that define themselves by inclusion lose the ability to exclude anyone, including those who damage the group.
Suileabhain-Wilson's 2003 essay. The first fallacy — that ostracism is always wrong — leaves a group unable to remove anyone, so its tolerance is captured by whoever exploits it.
In practice
- A volunteer group that cannot expel a member who drives others away loses six members to keep one.
- A community forum where every ban is treated as a betrayal of openness ends up with only the people willing to tolerate the worst behaviour.