Well, considering, the word Cartography is a french word meaning to make maps ([French cartographie : carte, map (from Old French, from Latin charta, carta, paper made from papyrus; see card1) + -graphie, writing (from Greek graphi), and a Cartographer is someone who makes maps, then yes, all who are hear are in some way, a Cartographer.
As to skills or knowledge, no, there are no inherent skills one needs to possess. The literal definition of Cartographer is someone who makes maps. No degree necessary. No different than saying someone is a Plumber or Framer, or electrician. (of course with those, the astute reader will notice I did not further specify Licensed or Accredited ) And I do mean Framer (a person who frames something, as in construction) as opposed to a Farmer, someone who farms.