Yeah indeed Bittrex is the biggest Exchange wallet for Steem and SBD and the volumes are very low if not dead yet loool.
I believe a lot of holders did not even check their holdings a long time ago, and we rarely see some transfers.
The solution could be encouraging holders to move their holdings from Bittrex to other more newactive exchanges in order to attract new buyers to invect some life in the Steem & SBD market.
The last thing to say is try not to sell at all at this Bear Market because the good thing is coming for crypto in general.
It is only the beggining and the begginning takes a long time to stabilise.
Keep It Up.