i think a time rule would be better over a games rule as said they could pump those games out easy. like y not see them active over say the 2 months( a season) before a masters cup that allows the korean players. The big problem with this is what do you deem active? id say 30 games a week would be fine as an active player. This would be 30x8 (assuming there are 8 weeks) = 240 games or make it something like 400 games total if not over that time to force them to really play on our server i feel 100 is really light for a korean player.
If your going to have a rule based purely on the amount of time/games spent on SC2, then that amount just isn't fair. So many SEA players don't play that and to make a foreign player commit to that many games is near impossible. The idea of a 'foreign player' means they don't play mainly on our server.. Either have a small amount of games to play or use another method that they have to prove themselves in.
Even the smallest donations help keep sc2sea running! All donations go towards helping our site run including our monthly server hosting fees and sc2sea sponsored community tournaments we host. Find out more here.