Unfortuantely the bias is a poor tool for this because the single input affects multiple behaviors. That was behind a lot of the witness reluctance to use it in that manner. Hopefully in the future we can improve the mechanism to offer better tools.
To answer my own question (rhetorical of course) the printing rate is determined in part according to the market cap. So raising the price and market cap of STEEM by buying it and powering it up to designated burn account indirectly increases the print rate. Of course, so far the magnitude of this effect has been somewhat small, at only about $500 per day. But the steady growth in support for @burnpost raises the prospect of much higher buy and power up rates. Taking a lot of liquid STEEM off the market could have a dramatic effect.
I certainly don't expect to turn the world around on $500/day, but the feedback loops within @burnpost have been carefully designed to always operate in a beneficial direction at least, with the magnitude left up to the voters.
I was not aware that the bias modified other behaviors other than the printing of more sbds.
The sbd down to the peg will be better for the platform in the long run and for future businesses that want to run on a stable currency on the platform. So I wish you luck in your endeavours, I'll try to help out by dropping my 0.03c vote every once in a while.
Thank you for your support and thoughts.
I'm all in support for this. I had questions before checking the comments, but this conversation answered it all.
Good work, @smooth, Thanks.