Are main clients (ABC, BU) allowing rate-limited propagation of 0-fee with adequate priority?
I heard they don't anymore, because of the problems they caused to 0-conf...
Unless they relay them (and I hear BCHD still does) then, it's effectively a no-starter for below-minfee txs from the user side...
You're right, ABC and BU nodes do not route anything under 1 sat/byte by default. BU made the change last release, but you can still configure a BU node to do it if you want.
