1Password with Emails

So I agree with what you're saying, but I believe there is an issue when 1Password looks to "predict" the username wanting to be used on a site. I've found that when I click on the username field on a website, 1Password offers saved emails to be used as the username. The way I see it this should be changed, because I would guess that majority of users don't want to use their email as their username. I'm assuming this "bug" occurs because emails are saved under the username field within 1Password, but please correct me if I am wrong. I think 1Password is superior to Dashlane, and am trying to understand how to better use it.