What do you even mean it can be stamped out? At BEST you can remove CSAM from servers that you control, but nothing can prevent text based posts and nothing can prevent users linking to images on servers you don't control. Nostr is one of the best platforms for pedophiles to talk openly about their mental illness and for everyone else to insult them directly about their mental illness. I don't want CSAM on Nostr servers, but Nostr provides the perfect opportunity to give a response that's more than just censoring and filtering. The bridge doesn't change this.