If you don't get it, you probably don't spend too much time on 4chan. There is A LOT of ban evasion on 4chan. If you have a dynamic IP address from your ISP, y

If you don't get it, you probably don't spend too much time on 4chan. There is A LOT of ban evasion on 4chan. If you have a dynamic IP address from your ISP, you just spam/derail threads with personal crusades/whatever until you get banned, reset your router and repeat. This countdown increases the cost of ban evasion, since you can't get right back in to continue. Everyone on your targeted board/thread now gets at least a 15-minute respite. They've also had to blacklist entire ISP from making any posts because some people are constantly ban evading on them. Especially mobile ISPs, where there's basically an unlimited amount of fresh IPv6 addresses available.