I was a yahoo guy forever - But they seem to be purposefully reducing the usefulness of their products...
Like Yahoo Instant Messenger, which I used to have open all the time, primarily to txt to cell phones - Yes I had friends on actual Messenger too, but it was the ability to sit at a computer and txt to phones that made it invaluable.
They acted like it was something wrong server-side, and that they were moving to fix it, but after 3 or 4 months, I finally moved on. Now I don’t use it at all.
And their calendar services suck now... I have moved over to google and my calendar works across google, all my ‘droid machines, and in Thunderbird/lightning on all my computers...
But I don’t know how they can shut off mail, now that their phone apps require MAPI - I log into Yahoo Mail all the time with Thunderbird... but with nothing but a mailbox, I am soon to be rid of them... And I’ve had that mailbox since Yahoo was USA1 - I have already stopped paying for Plus, no longer use the calendar or the messenger... If a guy like me is going away, they’ve got a problem.
I have also noticed that their mail “upgrades” are almost always detrimental. They also deleted lots of my old email without warning, including many messages from my now-deceased father. It’s almost like they want people to leave.
The gal from google is running them into the ground. New homepage is unreadable and does not discriminate against ads vs AP news wire. Sports unlegible....who is running their UI design? And finally ymail - been spammed and remailed so many times, I had to drop them. embarrassing to friends and family to use that service! Gmail and outlook are much better managed.