Well, maybe. Right now curation rewards make up most (usually all) of the profits because the cash sends are high enough to satisfy the delegators. Presumably that would change in the 50% system and the bidbots would have to be constantly powering down and sending those curation rewards to their investors, as some of them are already doing.
This doesn't matter a whole lot, though, because the bidbots are already eating themselves. Their economic model doesn't work in a high-competition environment without SBD prices propping them up.
One thing 50% would actually do against them is make them (and everyone else) benefit less from another SBD pump. However, this could also be done by adding a two-way pegging system.
Yeah - I can see that, especially when factoring in delegators and paying out those investors. I honestly wasn't thinking about that form of bot when I responded, I was more thinking bots that were self-owned (which probably isn't many these days?).
Good point on the SBD pump phenomenon that we experienced during the last bull run. That is one thing that a 50/50 split would impact, the rate of SBD generation and the incentive of using them to sell SBD when it's way off it's peg.