You are publicly calling into question Mibbit's integrity here, and suggesting that there's an incentive to give Freenode false information about users' IP addr

You are publicly calling into question Mibbit's integrity here, and suggesting that there's an incentive to give Freenode false information about users' IP addresses. Why? Regardless of Mibbit's integrity -- of which I have no opinion, and am not calling into question -- freenode has absolutely no responsibility (contractual, moral, or otherwise) to extend their trust to any third party. If Mibbit wishes to resolve the issue they can enter into a contract with Freenode to establish trust. Mibbit can provide a financial incentive and contractual guarantees, and in return Freenode can agree to extend Mibbit trust and administrative resources.