It's more likely to make people question why they will be using them honestly. Since the bot will be getting more of the reward now if you pay them to vote for you. So technically they will be losing money on every bid. Unless the post gets popular.
Users will be losing 15% of the vote worth from bots now. So the bots will have to lower the cost of their votes. Because a 15% loss is not worth it.
RE: Hardfork 21 is HAPPENING. What will change?