Sadly, this takes BaB from a revolutionary social gambling game to a much slower dice roll.
For better or worse, this is how the majority of our players were already playing it. I understand that the bonus system in particular distinguished bustabit from other games, but most players didn't compete for the bonus and were essentially being taken advantage of by the few that did.
First off, saying that it was "taking advantage" is pretty insulting and frankly misleading as that was the goal of the game. It was explained indepth in the rules and in giant letters and numbers on the screen.
Secondly, I'd love to see some stats. I'm sure Ryan has access to them, I wonder if he'd share what % of players on BaB were at -.5% or worse lifetime for the bonus. Since those are the only players that this change helps and you are claiming that this change helps well over 50% of the players.
Either way, my point still stands. BaB is now a much slower dice game. Hopefully you have some plans to throw in some interesting variations or modifications, I know Ryan was talking last month about launching a game with a 100% bonus. I hope those plans haven't been scraped.
I am not too familiar with the background to this website and the game but it seems from your post that bustabit was originally owned by somebody else then was purchased by the OP.