If you have seen the Bourne movies with Matt Damon, you will get my picture reference.
Seriously, my first and last name is David Webb. You can imagine my surprise the first time watching the third Bourne movie on TV when he learns his name is David Webb.
There is nothing wrong with not wanting to share your name online. And please don't feel pressured to do so because I did, such was not my intention.
I don't like sharing too much info online either. Especially all in one place. Maybe a little here and there is okay. Although at this point if someone has been keeping up with all my comments they might be able to piece together enough to find my actual location XD
I might disclose my middle name to you sometime. Because as Flynn said in the movie Tangled, "someone might as well know."