This topic is to answer to this post.
When our Mozilla mentor @jonatoni saw our CoC, when she came to the final part:
Enforcement
In order to maintain our forum and community, moderators reserve the right to remove any content and any user account if content/account does not agree with this code of conduct.
All complaints will be reviewed and investigated and will result in a response that is deemed necessary and appropriate to the circumstances.
the first thing she asked was this: “Who will enforce? There’s no contact here, email address, username… who will receive my requests if I have troubles with some community member?”
So her suggestion is this:
There will be a group of active community members (i.e. 3-4 members in the community team) responsible for receiving this kind of CoC requests from members. Their usernames and contact addresses will be visible in the CoC itself and they must be as heterogeneous and diverse as possible.
In this way if I’m a member having some troubles on the forum (or website) because of another member, even if this member is in the community team or in the contact group I can send my complain to another person in the contact group. Since the contact group is heterogeneous and diverse enough (all its members are not close friends 
), I’m relatively sure that my complain is taken into consideration and some action is undertaken.
Right now instead the whole group of moderators will receive CoC complains, so if I have troubles with one of them I may not feel confident and strong enough to send this complain.