You have made 101 posts, I would not think that will happen. If you have contributed to conversations, removing your posts may break the flow for any future visitors reading the thread.
What you can do however is:
*Change your profile details so nothing personal is left in it.
*If you have the patience, delete each post individually.
*Add a fake email address, change your password to something random, then even you may get locked out.
But my suggestion is to put your arduino on the shelf for a bit, then come back to the scene when you are ready. You obviously came here as this sort of thing interests you, don't let a little bit of frustrating code or errors stop a potential career/ hobby in something like this.
You just need to master the incredibly basic before venturing on.
Having a stable knowledge of the difference between variable types and sizes, arrays, and different function declarations, will help you a lot before even touching the micro controller.
http://www.cprogramming.com/tutorial/lesson1.htmlhttp://www.parashift.com/c++-faq-lite/http://www.doc.ic.ac.uk/~wjk/C++Intro/Good luck if you do leave.