Steemians wanted to nerf bots, lowering the vote target from 40 to 5 per day at 100% would effectively do that but not without some collateral damage. Namely human curators spending a lot of time trying build a following by up-voting with more frequency and interacting alot on Steemit. Apparently The devs have taken a hands off approach for now and are not changing the vote targeting. Allowing bots to be much more profitable than humans for now until a better solution is found or more people learn to use bots and their value dilutes. In the meantime you can help by up-voting verified humans on Steemit and down-voting comment bots when you see them.