Why...

Only reason I wouldn't bring it up in conversation is because the chances of finding someone else still playing gMS on a relatively small campus thousands of miles away from the north american continent in a region that has its own localised version of the game that all newer players are filtered to is pretty much zero. Not embarrassed about playing this game, maybe a little ashamed given how much grief it has given me lately though.

Wait what, trying to compare CoD to Maple? FPSs and RPGs, can't really be compared on an online multiplayer level IMO. If you like CoD more play that, simple as. If you feel you have "outgrown" Maple then by all means stop. You are not obliged to continue playing.