Originally Posted by nosticks
I understand what you are asking, however, consider this trap, one which I fall into often.
Many sites use e-mail address to gain access along with a password. Ok, so we are moving along and some time later I forget my password. I then click on your "Forgot Password" and your automated site sends a password reset to my e-mail address. That's wonderful if you still have access to that account. When I change providers, they instantly shut down access to the e-mail account of record. So your automated response goes to never never land and there I sit unable to log in to your site.
That is why you get an e-mail address from an independent e-mail provider (gmail, yahoo, outlook.com, etc.) that won't disappear when you change ISP's.