It's got nothing to do with law, it's simply a matter of not being a hypocrite and making IRC a generally better place. How you you like it if someone you banned came on here and said that he was banned from your channel but that the ban shouldn't apply to him because he decided it didn't and we all gave him a list of proxies to dodge it? How about if he wanted a list of proxies to connect his army of infected IRC drones to a server you'd K-lined him from - would it still be OK because he thought the ban was unfair so he should be allowed to do whatever he wants?