So complex - I needed to read both Korean and English versions to understand them all. Bonus Mileage is coming while US will pull it out soon. Also Qualification procedure becomes simpler - now Asiana started to give benefit more to "frequent" flyers, how smart. According to previous rule, anyone could become gold or diamond as long as accumulate 40k(or 100k for dia) no matter how long it took.

For clarify, bonus mile is given only for Asiana flight.