Problem is, when everyone just look to maximize their rewards. Anyway, if someone just buy bidbot to show his content just to get opportunity to get rewarded by organic votes it is not that bad. The real problem is that really not much people buy steem for bidbots, because they just make power down and have still circualting liquid steem for use bidbots. I think it should be something like other pool for bidboots, so users will can't use the same 1/13 stack of power down once and once again. Bidbots give you profits ok, but your earnings from that post should be frozen for long time and you should don't have access to use this money once again after one week. You know this is very simple. Your post earn 7 days and power down is 7 days. There is only the same flow on money and the abuser earn more without puting any money from outside. Guys, if you really need change something, which is bad for platform don't start flag battle, because people can only quit. We don't need smaller ecosystem, we need working system protecting from abusers. You need block steems from power downs to be used for bid bots. I think maybe you should block links from steemit in memo, so they can't just send specific post for bidbot or just make another pool, where cash from power down can't be used for bidbots.

Summary:
Users using bidbots steal earnings from other content creators from their inflation pool, because now is easy use bidbots without putting any additional money from exchanges. If you can just do something with money from power down, which is delivered instantly to bid bots it should help much more than any other system.