Actually, Skipness One Echo - SLF is a phrase that I've never heard used outside of PPRuNe, except once by a pilot, many years ago: I'm sure that it is used by somebody, somewhere nowadays, but not with any regularity.
I won't waste your time, and mine with examples or explanations of why it might be worth taking the role seriously, since they abound on PPRuNe, and must have been already read and discounted by your good self. That's fine - the wonderful thing about perceptions is that they are your own: Nobody can take them away or invalidate them. However, if you could manage to squeeze just enough respect for us, even as people, to avoid coming into a CC forum on an aircrew bulletin board and posting about your contempt for the role in toto - we'd all be ever so grateful.