“A lower minimum fee is also likely to worsen fees' ability to be a significant contributor to mining rewards as block subsidy diminishes.”

That's right, probably the natural solution would be for BTC to rise above $1 million to make it worthwhile.

ck -   i wanted to know if solo.ckpool.org or eusolo accept PBST on request or if it is only implemented in very special cases for a reasonable price.Thank you.