I was a regular user on groklaw as well. She quit because she was a private person and email was no longer private. You may be able to protect the contents of your email by encrypting it (assuming that the encryption hasn't been intentionally compromised, which is NOT a safe assumption), but that doesn't encrypt the "From/To" fields. PJ quit the internet (not just groklaw) because she's a private person who didn't want to be watched.
You have your view, I have mine. Everyone else can read what she wrote and decide for themselves.