I too have no real anger. Yes, it's a nuisance, and I can understand others being rightfully peeved, but ultimately the only thing leaked were email addresses. Like Bazaar said it's not like an email alone can be abused by other people when they don't know any other data relating to it. Spam is really the worst that can happen, but spam is little more than a nuisance. If the emails were revealed intentionally, then yes I'd be truly peeved, but you didn't intend for it and as we all make mistakes there's no point in being angry when you can simply remember to check for BCC next time. You've overall done a stellar job running the DDP and I don't think that should be forgotten.