How come you think you will have any community left? A chat network is entirely composed of and founded on the trust of its users. Trust that you have irreversibly severed.
If there is no trust, there are no users. Where there are no users, there is no community. Without a community, there is no chat network - people just migrate elsewhere and there's no trick you can pull to stop it. You have destroyed freenode and there is no recourse.
My question to you is: How did you actually think this would turn out? It all seems like a pointless exercise, and a person with half a brain should have seen this coming miles ahead.