That's harder to set up, and also unfair to people who have an odd IP address. It's easier and better to just block 0.0.0.0/1 half of the time, and 128.0.0.0/1

That's harder to set up, and also unfair to people who have an odd IP address. It's easier and better to just block 0.0.0.0/1 half of the time, and 128.0.0.0/1 for the other half of the time. Switch every day at noon. Bot traffic will be cut by 50%, and humans are all treated equally! It's a total win!