"Self-organized moderation", ie. trying to preferentially resolve moderation issues among peers rather than using power structures is a good thing to strive for, but...

You don't achieve that by telling people "we won't moderate, tell people yourself if you have an issue with them", you achieve that by codifying that boundaries of others must be respected and make it clear that you will step in if they're not.

If you just tell people to do it themselves, but you never actually provide the supporting infrastructure to do so, nor build the social culture necessary... then all you've done is declare open season on marginalized folks.