I'm SLF and damn proud of it!!
PC has just about run it's course and it's time for the pendulum to swing back the other way!
Still SLF is better than being referred to as the captains "sexual adviser" as I heard a grizzled 4 bar call a callow second officer one day.
Everyone has their nicknames for the people they work with or against...there is no problem so long as they don't hear what you call them!