I think you're creating a binary where one doesn't exist. People communicate ideas for a variety of reasons only one of which is to gain public notoriety. If someone wishes to publish their writing pseudonymously then they should be free to do so with the expectation that any reasonable person will respect their right to privacy. The idea that people should just keep to themselves or their in-group to avoid public persecution is directly contrary to the idea of a free and open society and has been repeatedly demonstrated to be a symptom of authoritarian regimes or movements.