As a new member, the ANA assigns a number to identify you among the community. To change this, simply use the MY ACCOUNT from the drop down at the top of the page, MY PROFILE followed by CHANGE MY USERNAME/PASSWORD at the left. You may chose any name you like. Another commonly asked question is adding followers/friends. This is accomplished by clicking on a members user name and then FOLLOW+ on the purple rectangle just below the drop down next to their name. You'll need to wait for them to do likewise before private email is to be exchanged. Hope these two main questions help. 

I see we have many new members. Welcome all!

Thanks for the tip! Being just number is weber good!! LOL