Yes, the Code of Honour is a good thing, and I think it's great that people are participating. Some choose to simply continue to follow its tenets, rather than "sign up." For me personally, I just prefer not to make vows to any but myself. It can become a political lever, and as such can be misused in a disagreement. But it's just my way; I think those that choose to sign are doing a good thing for the community.