Anonymity like privacy is what you think it to be. Nothing more, ever, Something less, always.
How do I find you??? let me count the ways.
You have the following hardware ID's in your computer:

1. Motherboard model and serial number.
2. CPU model and serial number.
3. Hard drive model and serial number.
4. Video card model and serial number.
5. Media Access Control number on each LAN port.
6. Second Media Access control number on your wireless port... if so equipped.
As a minimum.

Then we have the software ID's such as:
7. Operating system type.
8. OS registration number.
9. Internet browser type.
10. Internet browser version number.
11. Internet browser registration number (Product ID in IE).
12. List of any Internet browser add-ons by release or version number.
All of this before you ever connect your computer to a network.

Then when you do connect to a computer you have:

13. An IP address
14. Internet browser information from above.
15. E-mail address including all of the header (forwarding) information that we do not normally see.

So, there is a point where anonymity is a good idea, but you can always be found.
Then if you are like me and mother gave you a very unique name... It really does not make much sense.
Go to http://www.howmanyofme.com/ and check your name.
There are two of me in the U.S. So, I usually use my name if I am going to post anything. I know I cannot hide.

I have moved across the country a couple of times and old friends still find me.
Merlin