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?
It's spread out over many random nodes right not just a single node that has enough coins to accommodate. at least thats my understanding of it.