How often does an inmate arrive from another facility and directly straight to the hole? For simply knowing someone who works there. Going a month in the hole for the stupidest reason punished for knowing a worker. Completely bullshit

Most inmates on transfer might spend a night or a week in the SHU awaiting a bed in the facility. The situation you are referring to is called "separatee", where two inmates are either co-defendants OR "they know each other" and are required to be segregated. There are two types of segregation outlined by the Bureau of Prisons: disciplinary and administrative detention. This one is administrative.