Dark features are not part of our official support and represent beta features without any guarantee to work properly on all systems.
In most cases, we do not recommend using dark features. You should keep any dark feature off, unless //SEIBERT/MEDIA (e.g. our support team) explicitely advised you to activate it.
Some of the features in Linchpin are not enabled by default and may be implemented as Dark Features.
The so-called "dark features" are simply system configuration options that are hidden from the normal administration menus. Only System Administrators can change dark features. Dark features give advanced users the possibility to enable or disable specific functionalities. Be careful with dark features as they may cause problems if misused since they will impact the entire instance.