Delete Account (OR) Username Change Request

Hi. This is an old account I no longer use and haven't used in a long time before today. I honestly forgot this account even existed. Don't even know why I created it.

Anyway, if possible, I would like the account deleted or purged from the site. I will probably never use this account again, amd I would like to use this username on my main account. If that is not possible, which I believe it isn't, I would like it if the username could be changed to something else so I can use this username on my main account.

Please change the username to Anonymous6114.

Any issues with my request, please let me know.