Shamrock? Man, is Shanks rel name Séamus? Not gonna lie, did not have that name in my mind at all.
But fuck it, good to learn that the whole "could be evil Shanks though!" shit is over now.
Is that the next cope?
So what are they, tax collectors?
They are a group that Oda literally did not even conceive of when Robin mentioned them, so why the hell does it matter what exact role the have?
Like, I do not know why the fuck Admiral-stans still ride that "greatest military power of he world government" statement made over TWENTY YEARS AGO in IRL time and was not even done from a omisicent narrator/Oda perspective but ROBIN calling the Admirals that.