I see this just as repetition of the 32 bit vs 64 bit operating systems. Why would anyone want to use 64 bit operating system? Instructions are longer, it requires more cache, RAM, disk space and so on, making performance worse. Nobody actually wants 64 bit systems. Endless problems with drivers, programs, etc.
My servers currently ban in average 1200 individual addresses and around 20 /24 cidr network addresses, which is triggered after N individual addresses in a specific subnet size gets flagged. The amount of abuse traffic is ridiculous.