Implement PM blocking for regular users and admins
The PM blocking tool is available for all regular users and admins.
Regular users can use it as a global ignore rule, allowing them to
avoid harassers that are able to ban, mute, or ignore evade and PM
spam them.
Administrators are often bombarded with PMs and often they don't have
the time nor the means to entertain them, so this tool allows them
to work or just use the simulator in peace. Generally, administrators
are not required to be available to all PMs as the rest of the members
of staff, whom are not allowed to use this tool, are.