what is the most effective way of censorship?

its when the target does not know what is being censored

blackbox searchengines are the most effective way to do censorship

any searchengine that does not publish its database, algorithms and banned words

list is a blackbox search engine

nostr:note1kt4cau0jv5tkhp373jwwlw7emm4usdnevzg6yu6gxrx8fl4z3zwqnpze8k