Very odd. The Internet is based on the illusion of anonymity. Take this forum for example, most members post under assumed names & don't reveal their true identities. It's all a mystery to me but I'm sure anyone with sufficient knowledge could easily find out who they are.
The opposite is true for me...
I tend to give far too much (private) information about myself on Forums such as this....
...and then get concerned when copies of it immediately appear in the Google Search Engine, for the rest of the World to see....

....!
...and there is absolutely no way to remove them.
U-Tube is a typical, uncontrolled, example. Anyone can take a video of you, and post it in U-Tube, together with unfavourable comments by the poster, and in the the post replies!
U-tube can become a Nightmare!
Unfortunately, we cant pick and choose who we reveal ourselves to on the Internet...

....!
Private Messages, and E-Mail, is probably the most secure. Everything we
publish on the Internet remains there for ever and ever!
A frightening thought!....

...!
Paul...In "Invisibility Mode"...(I wish!).... 8-)...!
Win 8.1 64-bit. DX11. Advent Tower. Intel i7-3770 3.9 GHz 8-core. 8 GB System RAM. AMD Radeon HD 7700 1GB RAM. DVD ROM. 2 Terra Byte SATA Hard Drive. Philips 17" LCD Monitor. Saitek Cyborg X Fly-5 Joystick. ...and a Briggs and Stratton Petrol Lawn Mower.