It would be great if there was a way to post a thread where you could select which members would be able to view it.
If anyone could see the threads by making an account, they might be able to connect the dots and identify you in RL if they happen to know you.
That's why I'd prefer if for certain threads, I could select the regulars and only they'd be allowed to view it. Obviously admins/mods would be able to view them all the time.
I'm puzzled by this. If you want privacy, perhaps the internet is not the right place for it.
Keep a diary. Talk to a friend. Send private message to CEMB members you trust.
But I suppose they could redesign the whole forum for your convenience.