We offered it on a site with a "guest login" where people redeem vouchers but might not want to make an account. So I think that's one valid use case. We need t

We offered it on a site with a "guest login" where people redeem vouchers but might not want to make an account. So I think that's one valid use case. We need to associate the voucher with the email, so we need to ensure they own it by clicking the link, in case of support hassles down the line for lost vouchers. And if they make the account later they can see their old ones from before.