You promised 1 TB when I signed for yahoo email and did not delete unwanted emails thinking the space is enough and now suddenly with only 30 days notice you want us to delete 25 years worth of emails, not at all ethical and good customer service
Yahoo earns from ads too so you are still earning, how much couple of dollars from us will make difference
At least keep originally promised storage to old accounts or accounts already signed up for emails prior to your decision to charge fee
Please be fair and in good books of your loyal email users