FWIW, I have yet to see a code of conduct that really says anything beyond "don't be a jerk, and act like a grownup". It might be silly if it also told me how to dress on Tuesdays and who to vote for, but in reality they rarely or never say anything beyond "don't be a jerk, and act like a grownup." I also have no problem with someone else reminding me of that, because I have to remind myself of that all the time. I don't know why anyone would be offended by such a thing.
It really is magical to see these people that think that everyone are supposedly always courteous to each other throw such a shit fit over codifying that into an official policy.
Because no adult has ever harassed another in a programming community? I would love it if everyone behaved politely and courteously, however this is not currently what is happening in some projects. Having a CoC is merely a preventative measure to curb bad behavior for those who can't self-police.
Feel free to waste your breath trying to convince me that CoCs aren't needed.
Hardly: a code of conduct is juvenile behaviour. It's like when I was a little kid and drafted a huge constitution for my amazing awesome cool club — that was just me.
Adults don't need to write down a code of conduct, because they adhere to an unwritten code of conduct. Children whinge, 'you shouldn't do that, because this says not to!'; adults don't do that, because they know that they oughtn't — and they refrain from associating with others who do. Children want their clique to gang up on the people they don't like; adults simply walk away from those people.
Childhood is all about, 'you can't'; adulthood is all about 'I won't.'