?? and where to post the scorecards?
It's "ranked" (vs. practice) for stroke play, and "scored" (vs. practice or challenge) for match play. Click on "game mode." Dunno what you mean about posting the card.... in scored mode your match will be recorded in your stats.
Ranked strokeplay rounds (and only these) count to your average (WGT "handicap") automatically. No need to make them known anywhere.