Oh they already know who you are. Too late to fight that fight

Of course they know my meatspace identity.

And maybe someone knows that Mirimir is meatspace me.

But Mirimir is only a semi-anonymous persona. And I don't count on being anonymous as Mirimir.

However, I've had thousands of other personas, over the years. Mostly all using some mix of nested VPN chains and Tor. Some using Mixmaster remailers as well. Many I only used for a few days, or maybe for a month.

I doubt that anyone knows all of the connections. Or even enough to trouble me substantially.