The only way to delete your AOL screen name if you live in the US is to completely cancel your free or paid AOL account (information for AOL UK users is here – ETA, 1-18-2016: you must hit “Escape” on your keyboard as soon as this page loads or it will 301 redirect to help.aol.com, which gives no specifics). The easiest way to do that is to use AOL’s online cancel form.
The form was designed to convert paying AOL subscribers to free-of-charge accounts, but it can also be used to completely rid yourself of your AOL screen name.
It’s as simple as filling out your name, address, alternate email, phone number, then checking the box next to where it says, If you do not want your account to be converted to free, or if you want to cancel your free account, check here (screen cap).
To keep you from having to click through to my all-purpose post on using the online cancel form to completely cancel your AOL account, here it is: