I perhaps have slightly more fringe interests than you, and in the past have been somewhat indiscreet, albeit on obscure forums.
But in general, if I have an opinion about something, I'm going to publicly and proudly state it - even if I later have to recant. I'd rather admit publicly that I was wrong than hide my views.
I personally felt like the Internet gave us the power of managing several identities, having personas tied to some communities, making it simple to meet new people and yet (sort of) protect our privacy.
Now, I feel like the game has changed and if you want to enjoy anything online, more and more, you'll have to allow access to your life to everyone you ever interact with, unless you spend a lot of time tweaking privacy settings everywhere and live almost like a criminal on the run.
I'm not advocating disappearing altogether. There's nothing wrong with keeping in touch with my friends on facebook, sharing the odd picture.
I do disagree that it feels good to use my real name. I wish I'd been more careful peppering my various accounts with references to my real name. I'd really love to be able to press a button and have zero results come up on google for my name.
Why on earth should you, random internet stranger, be a few clicks away from finding photos of my baby son on facebook? Who gave you the authority to know so much about me? Well, I did by sharing it in the first place.
Not that I have anything in particular to hide, but I feel very strongly that it should be me who's in control of that data.
I don't think it can be wholly solved by technology or by laws.
I think it can only be solved by behavioural changes in the way we use the web.