I know of a diamond plus member. Apparently the list of DM Plus members is not very large. I think it’s less than 20-30 people. Last I heard, only about 10 people has it. A few years back, you would need to be spending at least $100k minimum per year. If you fly one round trip HKG to JFK on Business every month ($6-8k), you can get close to meeting this minimum spending requirement. But I guess with ticket prices so inflated now, maybe the spend requirement is different.
the number of members should be more of 300-500 range instead
100K is not the hard line tho