I consider being closeted as not being known to be publicly participating in whatever activity.
Not doing so publicly.
I'm known to be publicly supporting LGBTQ++. I'm known as well to be publicly polygamous and polyamorous. I'm known publicly to have engaged in MFM threesums. I'm known to be publicly a solitairy wiccan as well. I'm known publicly to be somewhat of a nudist.
That doesn't mean I practice any of that publicly. Or ever have. The Fact is, I'm not even gay.
I don't consider myself closeted on any of that however.
The title on my about me makes this abundantly clear on one of those. Just the title, because that title is public to everyone, even off this site.
This post isn't even site private. So you are known publicly, despite being anonymous. It's still publicly known.