I had an old Yahoo email account (it was @ymail, I thought that was neat). I think I made the account in 2008 or 2009. Back when I did not know any better, I primarily used Gmail, MSN, and Yahoo Mail, but Yahoo was always third on the priority list. I do not think I meaningfully used the Yahoo account since 2013 or 14. I was aware of the big Yahoo hack in 2016 or so, but never got around to deleting my account. Now that I am older and wiser (I pay for Posteo and SimpleLogin for my own email), I decided to delete my Yahoo account. When I tried this with AOL a year or so ago, it did not go well, but Yahoo made deleting my account surprisingly easy. I recommend using Just Delete Me as a guide to help you find and delete old and unused accounts that can become liabilities.