The Original owner of RSbot was taken to court, fined 1000 L and had too sign a contract stating he would never play rs again. Imagine that Ban Hammer.
Yeah, they use to account ban, then they would IP ban, then it went to accounts for a bit, then 24 day bans then back to account bans and it looks like they're starting to reset levels now.
banning an IP isn't pointless, you are potentially forcing someone to either quit fucking about on their game, or making them pay out whatever the ISP charges for a new IP. You can't just turn your modem on and off, that won't change your IP.