WHY are we not getting SBD anymore?

Due to the low price of STEEM, the ability of the system to support the SBD already in circulation being worth $1 is not there, so creating new SBD is mostly disabled (the only exception being for SPS).

If the price of STEEM goes up or the amount of SBD in circulation goes down, then SBD will again be worth $1 and it will start getting paid out as rewards. In fact just a day or two ago there was a price spike in STEEM, and it looked like SBD was going to be restored, but the price dropped back down and we aren't quite there yet.

There is a project called @sbdpotato which is reducing the supply of SBD by converting it to STEEM on behalf of the SPS treasury. If you want to get SBD worth $1 and reenabled for rewards, then support @sbdpotato by voting for its posts/comments as well as its SPS proposal.