In the sign-up process, I did not know what an "associated account" was supposed to be. If I remember correctly, there was some mail address (that I did not know or recognize) shown under Associated Accounts in my newly created twit profile settings page (or something of a similar name - cannot check now, since I cannot log in). It was not an email address that I had entered, and I thought it was some dummy placeholder address, some possibly pre-populated data field, just like there was some dummy username pre-populated in the Create New Account form. So I think I deleted that "associated account" address from my profile, seems there is a trash can icon next to it. I did not know what business a strange email address had, being "associated" with my newly set-up twit account.
I am confused. I was under the impression that one of the main advantages of SQRL was supposed to be that a website could recognize an individual user without an email address.