An output is considered dust if the cost to the network to spend the
coins is more than 1/3 of the minimum free transaction relay fee, which
has a default rate of 1000 satoshis/kb
bitcoind refactored dust threshold calculation, which removed the
multiply factor of 3 from the code, but increased the DUST_RELAY_TX_FEE
from 1000 to 3000 (satoshi/kb).
lbrycrd adopted the refactored code but also kept the rate to
1000 dewies/kB, which means:
An output is considered dust if the cost to the network to spend the
coins is more than the minimum free transaction relay fee.
