Sure. Why not?

I just won't talk about anything that I talked about before.

It's exactly like someone asking questions about someone else. That all goes to /dev/null.

Anonymity can be amusing. I have many other personas, besides Mirimir. None here on HN, of course. And I'm sure that many of my correspondents also have multiple personas.

So a few times, I've wondered whether I was actually having multiple parallel conversations with someone, using different personas. But one just doesn't ask about such things. And at times, my contacts and I do that intentionally, to confuse observers.