>>105896527I don't know if there's a word for their initial purpose, but the M.E.S. were initially mythology tourists before they gradually became semi-ambassadors. They were meant to document information about foreign cultures and mythos to see if/how the Nameless One influenced or otherwise was connected to them.
On another note, when checking 
dictionary.com to see if any of the possible definitions of hermit apply to what they do, I found this:
>a spiced molasses cookie often containing raisins or nuts.Not relevant, just thought I'd share it.