If your 10k can secure a transaction for 99% of the people, that 1% who transfered 100k coins... how are they going to be anonymized?
Someone will have more coins than anyone else. If they were to transfer a greater number of coins than the highest staked amount, how will they be anonymized?
then they have to break it down to smaller denominations. nothing wrong with that. an Armoured Bank Truck can only move so much money to the bank, you simply just get more Armoured Bank Trucks if you need to move more money.