People have different definitions of what constitutes acceptable conduct. A CoC acknowledges this and takes some steps to make sure people are on the same page.

People have different definitions of what constitutes acceptable conduct. A CoC acknowledges this and takes some steps to make sure people are on the same page. Even if it isn't enforced to the letter, some people need a reminder. I think there's also a hope (maybe not true in practice) that having a CoC is a positive signal to people who feel marginalized in other communities.