This isn't a new issue: http://www.learnliberty.org/blog/anonymity-and-doxing-in-the...
I'm responsible for my own OpSec, but we both know that public registries have their own vulnerabilities. Again, I think I detect a misattribution of responsibility. Nevertheless that was a single example, not the entirety of the means by which personal information can be gleaned by the unscrupulous.
My counter-position is that it is essential for we who have influence over systems design and policy to avoid unintended negative social consequences in the services we build.
It's akin to celebs complaining about gun control, stating they hate guns and would never have one themselves, as they are guarded by several armed body guards.
People want to be anonymous, but don't want just anyone to be able to send them messages. Okay, so who can send you messages? Who can post things you can see? What is your solution to this?