Hello and welcome back
I can confirm that your characters are still active - the reason you cannot see them when you login is because of your client. It can happen when you try to patch an old client with many changes, one of the files that holds the character models gets corrupted so it looks like you have no characters at the login screen. Simply reinstall the client to fix that - a new one was released a few days back which means you won't have any massive patch to wait for, so download that.

Your website posts being under my name means the account was deleted, and it must have been quite a while ago because I stopped it from putting orphaned posts under my name. No idea why it was deleted since I never delete accounts - maybe it was just an error. Your account will get automatically recreated when you try to login with it again if it matches the game, which I believe you already did since you are posting from it now, but I'm afraid your old posts will remain under my name now.