When post payout occurs, the system creates more SBD to pay you with.
There used to be a built-in mechanism to "convert to steem", which actually destroyed the sbd, but that's been taken out while the SBD value is so high.
Hence, lots of sbd being created and not destroyed.
When post payout occurs, the system creates more SBD to pay you with.
There used to be a built-in mechanism to "convert to steem", which actually destroyed the sbd, but that's been taken out while the SBD value is so high.
Hence, lots of sbd being created and not destroyed.
@rossdcurrie already explained it well. It should be added that SBD is also destroyed when using the "Promote" function.
I've been promoting almost all of my posts for .001 sbd.