I think if you're writing a widely read, critically acclaimed, publicly available blog and feel that anonymity is crucial for your safety then yes, it would be

I think if you're writing a widely read, critically acclaimed, publicly available blog and feel that anonymity is crucial for your safety then yes, it would be appropriate to practice opsec. Journalists should be hostile, in the sense that they should not collude with subjects on how to present a story to the public. The crisis in journalism we see today is that there is too much collusion between subjects and journalists. There's a clear public interest in knowing the identity of a subject. Ideally there would be no journalistic discretion at all. Reveal the information, unless there's a clear, concise, and open policy rationalizing not doing so.