I don't understand how the login page can get so confused. Some time ago I was signed up here but then two weeks ago, the login page says I had the wrong password.

I signed up under another name. Today I tried logging in and the logon page again says I used the wrong password. But a few minutes later the Home page appeared and said Welcome to my new name.

Am I registered or am I not? Apparently the system does know my name since I can start a new message threat.