We allow people to discuss about actually potentially straight-out illegal operations like modding the Wii -- why would we want to deny discussions about bannable offenses?
As Jeff said:
I don't really care about legality unless it's CLEARLY illegal (linking to warez, gimme teh free softwarez, etc)
I think cheating is not a problem that will go away if you pretend really hard it doesn't exist. Cheating needs to be discussed in the open, if only for the educational advantages of being better able to tell cheaters from gifted players.