Every change you've made in the past 10 years has been a detriment - go back to the oldest Yahoo email possible.
There's a window open in the center of my other Yahoo email account inviting me to take a survey on Yahoo. BUT IT DOESN'T WORK! I CAN CLICK FOREVER AND YOUR WINDOW DOESN'T EVEN WORK. Sadly this is typical of Yahoo these days. None of your "improvements" have been improvements.
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